Graphs of Polynomial Functions

Graphs Of Polynomial Functions

Answers

Answer 1

The polynomial which is as described in the task content is; P (x) = -0.2 (x - 1)² (x +4).

What is the formula for the polynomial P(x) as described?

It follows from the task content that; P(x) has a root of multiplicity 2 at x = 1 and a root with multiplicity of 1 at (x - 4).

Therefore, the polynomial would take the form;

P(x) = a (x - 1)² (x + 4)

Therefore, since the y-intercept is; y = -0.8

Therefore, we have that!

-0.8 = a (0-1)² (0+4)

-0.8 = 4a

a = -0.8 / 4

a = -0.2

Ultimately, the formula for the polynomial P(x) as given in the task content is; P (x) = -0.2 (x - 1)² (x +4).

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Related Questions

PLEASE HELP QUICK BC I don’t know



Triangle ABC is an isosceles triangle.
Form and solve an equation to find the value of t.
B
25 cm
A
4t - 7 cm
+
2t + 11 cm
C

Answers

Answer:

The value of t that satisfies the equation and makes triangle ABC an isosceles triangle is 9 cm.

Step-by-step explanation:

Since triangle ABC is an isosceles triangle, we know that the lengths of AB and AC are equal. Using the lengths given in the diagram, we can set up an equation:

AB = AC

4t - 7 = 2t + 11

Now we can solve for t:

4t - 7 = 2t + 11

2t = 18

t = 9

Therefore, the value of t that satisfies the equation and makes triangle ABC an isosceles triangle is 9 cm.

Hope this helps! I'm sorry if it doesn't. If you need more help, ask me! :]

Question Number 13 on the worksheet all parts answered

Answers

The town with the greatest average rainfall was Milton; the average rainfall in Southport was 0.75 inches more than in Fairview, and the actual rainfall in Fairview was 4.15 inches.

What was the town with the greatest average rainfall?

To identify this only observe the table and identify the highest value, in this case, the highest value is 4. 20 in average for Milton.

What is the difference in the average rainfall between Southport and Fairview?

4.09 - 3.35 = 0.75 inches

What is the actual rainfall in Fairview?

3.35 (information registered) + 0.8 = 4.15 inches

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Find two points on the line to graph the function.
Any lines or curves will be drawn once all required points are plotted.

Answers

The two points on the line to graph the function is (3, 4/3) and (-6, 10/3).

Define the term a line?

A line is a one-dimensional, straight shape that can go on forever in both directions. It is made up of an infinite number of points that are organized in a straight line.

We are unable to offer two points on the line for graphing in the absence of a line or function.

We consider the function is, [tex]f(x) = 2 - \frac{2}{9} x[/tex]

To graph the function [tex]f(x) = 2 - \frac{2}{9} x[/tex] , we can choose any two values of x, plug them into the equation to find the corresponding values of y, and then plot the points (x, y) on the coordinate plane. Here are two possible sets of points we can use:

Set 1:

Let x = 0:

f(0) = 2 - (2/9)(0) = 2

Therefore, one point on the line is (0, 2).

Let x = 9:

f(9) = 2 - (2/9)(9) = 0

and another point on the line is (9, 0).

Now, we can plot these two points on the coordinate plane and draw a straight line passing through them to graph the function [tex]f(x) = 2 - \frac{2}{9} x[/tex]

Set 2:

Let x = 3:

f(3) = 2 - (2/9)(3) = 2 - (2/3) = 4/3

So one point on the line is (3, 4/3).

Let x = -6:

f(-6) = 2 - (2/9)(-6) = 2 + (4/3) = 10/3

So another point on the line is (-6, 10/3).

Now, we can plot these two points on the coordinate plane and draw a straight line passing through them to graph the function [tex]f(x) = 2 - \frac{2}{9} x[/tex]

Therefore, the two points on the line to graph the function is (3, 4/3) and (-6, 10/3).

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The angle measures of $\triangle ABC$ are $A=54\degree$ , $B=38\degree$ , and $C=88\degree$ . List the sides of the triangle in order from shortest to longest.

Answers

The sides of the triangle in order from shortest to longest are b < a < c

How to determine the sides of the triangle in order from shortest to longest.

In triangle ABC, the side opposite angle A is denoted by a,

The side opposite angle B is denoted by bThe side opposite angle C is denoted by c.

To determine the order of the sides from shortest to longest, we need to use the triangle inequality theorem which implies that

The side opposite the largest angle is the largest side and vice versa

So, we have

b from B = 38 degrees

a from A = 54 degrees

c from C = 88 degrees

Therefore, the order of the sides from shortest to longest is: b < a < c

In other words, the side opposite angle B is the shortest, followed by the side opposite angle A, and the side opposite angle C is the longest.

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Refer to the pie graph that shows the world’s languages and the percentages of the population that speak them.

What percentage of the world’s population does not speak either French or German?

Answers

By answering the above question, we may state that Hence, neither expressions French nor German are spoken by nearly 97.7% of the world's population.

what is expression ?

In mathematics, you can multiply, divide, add, or take away. The following is how an expression is put together: Numeric value, expression, and math operator The elements of a mathematical expression include numbers, parameters, and functions. It is feasible to use contrasting words and expressions. Any mathematical statement containing variables, numbers, and a mathematical action between them is known as an expression, often known as an algebraic expression. As an example, the expression 4m + 5 is composed of the expressions 4m and 5, as well as the variable m from the above equation, which are all separated by the mathematical symbol +.

In the image you included, a pie chart illustrating the distribution of the global languages spoken by the entire population can be seen.

We need to figure out what portion of the world's population does not speak either French or German in order to respond to your query.

Around 1.2% of the world's population speaks French, according to the pie chart, and 1.1% speaks German, according to the same data.

Hence, it is possible to determine the proportion of people on Earth who do not speak either French or German as follows:

German: 1.1%; French: 1.2%; 100% = 97.7%

Hence, neither French nor German are spoken by nearly 97.7% of the world's population.

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Linda needs to have her car towed. Little Town Auto charges a flat fee of $75 plus $2 per miletowed. Write a function expressing Linda's towing cost, C, in terms of miles towed, x. Find thecost of having a car towed 14 miles.

Answers

The cost of having a car towed 14 miles is $103.

What is function ?

In mathematics, a function is a relation between a set of inputs (called the domain) and a set of possible outputs (called the range) with the property that each input is related to exactly one output. Functions are often represented by a formula or rule that describes how to compute the output value from the input value.

The towing cost, C, can be expressed as a function of miles towed, x, using the given information as follows:

C(x) = 75 + 2x

where x is the number of miles towed.

To find the cost of towing a car 14 miles, we can substitute x = 14 into the function:

C(14) = 75 + 2(14)

= 75 + 28

= $103

Therefore, the cost of having a car towed 14 miles is $103.

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I will mark you brainiest!

If the triangle above is translated two units to the right, what is the correct coordinate for A'?

A) A'(5, 5)
B) A'(5, 0)
C) A'(0, 5)
D) A'(0, 0)

Question #2
If the triangle above is reflected over the y-axis, what is the correct coordinate for A'?
A) A'(0, 5)
B) A'(2, 5)
C) A'(5, 2)
D) A'(-5, -2)

Answers

Answer:

1. C

2. B

Step-by-step explanation:

A. A(-2,5) => A' (-2 + 2, 5) or A' (0,5)

B. A(-2,5) => A' (- -2, 5) or A' (2,5)

Find x. Round your answer to the nearest tenth of a degree.

Answers

Answer:

  63.0°

Step-by-step explanation:

You want the measure of an angle in a right triangle with hypotenuse 11 and adjacent side 5.

Cosine

The cosine relation is ...

  Cos = Adjacent/Hypotenuse

  cos(x) = 5/11

Then the angle is found using the inverse cosine function:

  x = arccos(5/11) ≈ 63.0°

The value of x is about 63.0°.

__

Additional comment

The calculator's angle mode needs to be set to "degrees."

Solve for the base. Round to the nearest cent. Part: $7421.00 Rate of decrease: 30%

Answers

Answer:

≈ $5194,7

Step-by-step explanation:

First, find out how much did the price decrease:

[tex] \frac{7421 \times 30\%}{100\%} = 2226.3[/tex]

Now, subtract this number from the previous one (the price before):

$7421,00 - $2226,30 = $5194,70 ≈ $5194,7

Select the correct answer.
Which function is continuous across its domain?
O A.
OB.
C.
D.
f(x) =
ƒ(x) =
f(x) =
f(x) =
x + 6,
0.52,
20
-
3x,
-
x 2,
0.5 ,
25
3x,
x + 4,
0.52,
20
3x,
x + 4,
0.5 2,
25
3x,
-4 ≤ x < -2
-2 ≤ x ≤ 4
4 ≤ x ≤ 8
-4 ≤ x < -2
-2 < x < 4
4 ≤ x ≤ 8
-4 < x < -2
-2 ≤ x < 4
4 ≤ x ≤ 8
-4 ≤ x < -2
-2 ≤ x < 4
4 ≤ x ≤ 8

Answers

Function is continuous across its domain is B.

What is domain?

The domain of a function is the set of numbers that can go into a given function. In other words, it is the set of x-values that you can put into any given equation. The set of possible y-values is called the range. If you want to know how to find the domain of a function in a variety of situations,

If a real function f is given by a formula, it may be not defined for some values of the variable. In this case, it is a partial function, and the set of real numbers on which the formula can be evaluated to a real number is called the natural domain or domain of definition of [tex]f[/tex].

The function f(x) = 0.52 is a constant function, and constant functions are always continuous across their domain.

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Darlena has started taking photos at amateur dog racing events, later offering the photos for sale to the dog owners by email. The prices she has charged per photo at each of her first three events, and the corresponding number of photos sold and total revenue raised, appear in the table below.

Price per Photo Number of Photos Sold Revenue
$45
3
$135
$39
5
$195
$24
10
$240

Treating revenue as a function of the number of photos sold, a graph of the three data points is also shown. If she uses quadratic regression to fit a curve to the data, what number of photos sold and what price per photo will maximize her revenue?

Answers

The cost per photo at which revenue is maximized is about $127.95.

We must first calculate the relevant y-value for the quadratic function at

x = 6.5 in order to get the pricing per photo that optimizes revenue (i.e., the revenue). When we enter x = 6.5, we obtain:

[tex]R(6.5) = 0.3(6.5)^2 + 3.9(6.5) + 97.5 =[/tex]$127.95

What is revenue?

Before any costs or expenses are subtracted, revenue is the income derived from the sale of goods or services, or from any other use of capital or assets, related to an organization's primary operations. Also, it is known as sales or turnover.

from the question:

We can apply quadratic regression to identify the quadratic function that represents the revenue as a function of how many images are sold. This will provide us with the form's function:

[tex]R(x) = ax^2 + bx + c[/tex]

When x is the number of sold images, R(x), a, b, and c are coefficients we need to discover, and R(x) is the revenue.

We may construct an equation system to find the coefficients using the provided data:

(1) [tex]a(3)^2 + b(3) + c = 135[/tex]

(2)[tex]a(5)^2 + b(5) + c = 195[/tex]

(3) [tex]a(10)^2 + b(10) + c = 240[/tex]

When we simplify each equation, we obtain:

(1) 9a + 3b + c = 135

(2) 25a + 5b + c = 195

(3) 100a + 10b + c = 240

Any approach will work to solve this system of equations. We'll apply the substitution technique in this case.

Equation (1) gives us:

c = 135 - 9a - 3b

When we enter this into equation (2), we obtain:

25a + 5b + (135 - 9a - 3b) = 195

Simplifying, we get:

16a + 2b = 12

From equation (3), we get:

c = 240 - 100a - 10b

Substituting this into equation (1), we get:

9a + 3b + (240 - 100a - 10b) = 135

Simplifying, we get:

-91a - 7b = -105

Solving the system of equations 16a + 2b = 12 and -91a - 7b = -105, we get:

a = 0.3

b = 3.9

c = 97.5

Therefore, the quadratic function that models the revenue as a function of the number of photos sold is:

[tex]R(x) = 0.3x^2 + 3.9x + 97.5[/tex]

We must determine the x-value that corresponds to the parabola's vertex in order to determine the number of images that must be sold in order to maximize revenue. The vertex's x-value is determined by:

x = -b / 2a

Plugging in the values for a and b, we get:

x = -3.9 / 2(0.3) = -6.5

This indicates that the vertex of the parabola lies at x = 6.5 because the number of images sold cannot be negative. Darlena should therefore sell 6.5 photographs in order to increase her money.

We must first calculate the relevant y-value for the quadratic function at x = 6.5 in order to get the pricing per photo that optimizes revenue (i.e., the revenue). When we enter x = 6.5, we obtain:

[tex]R(6.5) = 0.3(6.5)^2 + 3.9(6.5) + 97.5 ≈ $127.95[/tex]

As a result, $127.95 per photo is the price that maximizes sales.

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Right triangle ABC is on a coordinate plane. Segment AB is on the like y=2 and is 6 units long. Point C is on the line x=-3. What is the y-value of Point C if the area of ABC is 9 units squared

Answers

The y-coordinate value of Point C if the area of ABC is 9 units squared is: 5 or -1

How to find the coordinate of the segment?

Point A is at (x, 2) and B is at (x + 6, 2). Since AB must lie on the line y=2  and be 6 units long. Point C is on the line x = -3 . So let C be at (-3, y).

Since ΔABC is a right angle, then point C must have the same x-coordinate as point A. Therefore, A(-3, 2) and B(2, 2).

The area of ΔABC is 9. So,

9 = 1/2 (b)(h)

where b is the base and h is the height.

so b = 6 and h = AC

Solving this for AC gives

9 = 1/2 (6)(AC)

18/6 = AC

3 = AC

Point C must lie 3 units above point A or 3 units below the point A. If it lies 3 units above, then it has a y-coordinate of 2 + 3 = 5.

If it lies 3 units below, it has a y-coordinate 2 - 3 = -1.

Therefore, y-coordinate is 5 or -1.

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An experiment is performed to determine whether the average nicotine content of one kind of cigarette exceeds that of another kind by 0.20 milligram. If n1 = 50 cigarettes of the first kind had an average nicotine content of 2.61 milligrams with a standard deviation of 0.12 milligram, whereas n2 = 40 cigarettes of the other kind had an average nicotine content of 2.38 milligrams with a standard deviation of 0.14 milligram, test the null hypothesis μ1-μ2 = 0.20 against the alternative hypothesis μ1-μ2≠0.20 at the 0.05 level of significance.

Answers

the average nicotine content of one kind of cigarette exceeds that of another kind by 0.20 milligram at the 0.05 level of significance.

To test the hypothesis that the average nicotine content of one kind of cigarette exceeds that of another kind by 0.20 milligram, we need to compare the means of two independent samples. We can use a two-sample t-test for this purpose. The null hypothesis is that the difference between the means is equal to 0.20 milligram, and the alternative hypothesis is that it is not equal to 0.20 milligram.

The test statistic is given by:

t = ([tex]x_{1}[/tex] - [tex]x_{2}[/tex] - d) / [tex]\sqrt{s_{1}^{2}/n_{1}+s_{2}^{2}/n_{2} }[/tex]

where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, n1 and n2 are the sample sizes, and d is the hypothesized difference in means (0.20 milligram in this case).

Substituting the given values, we have:

x1 = 2.61 milligrams

[tex]x_{1}[/tex] = 2.38 milligrams

[tex]s_{1}[/tex] = 0.12 milligram

[tex]s_{2}[/tex] = 0.14 milligram

n1 = 50 cigarettes

n2 = 40 cigarettes

d = 0.20 milligram

t = (2.61 - 2.38 - 0.20) / [tex]\sqrt{0.12^{2}/50+0.14^{2}/40 }[/tex]= 4.57

The degrees of freedom for the test are given by:

[tex]df= (s_{1}^{2} /n_{1} +s_{2}^{2}/n_{2})^{2}/(s_{1}^{2} /s_{1})^{2}/_{1}-1 +(s_{2}^{2}/n_{2}^{2} /n_{2}-1[/tex])

Substituting the given values, we have:

df = [tex]( 0.12^{2}/50+0.14^{2}/40)^{2}/((0.12^{2}/50)^{2}/49+(0.14^{2}/40)^{2}/39= 86.36[/tex](rounded to two decimal places)

Using a t-distribution table or a calculator, we can find the critical values for a two-tailed test at the 0.05 level of significance with 86 degrees of freedom. For a two-tailed test, the critical values are ±1.987.

Since the calculated t-value of 4.57 is greater than the critical value of 1.987, we reject the null hypothesis.

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Prove or disprove the statement: The point (2, √5) lies on the circle centered at the origin with radius 3. The radius of the circle is The exact distance from the center (0, 0) to the point (2, √5) is (2. √5) lie on the circle. units.​

Answers

Answer:

The statement is correct

Step-by-step explanation:

Use the equation of a circle:

x² + y² = r²

x² + y² = 3²

then enter the coordinates of the point (2; √5):

2² + (√5)² = 9

4 + 5 = 9 (that is correct)

The point (2, √5) lies on the circle centered at the origin with radius 3 is True statement.

What is Equation of Circle?

The standard equation of a circle is given by:

(x-h)² + (y-k)² = r²

Where (h,k) is the coordinates of center of the circle and r is the radius.

We have,

The point  (2, √5) lies on the circle centered at the origin with radius 3.

We know the equation of circle at origin is

x² + y² = r², where r is the radius of circle

So, x² + y² = 3²

Now. to check the point put x= 2 and y= √5 as

x² + y²

= 2² + √5²

= 4 +5

= 9

Thus, the given statement is Correct.

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Question A) Work out the distance travelled on a cycle in the first 14 seconds. Q B) Work out thr acceleration speed in the first 4 seconds.

Answers

The distance travelled in the first 14 seconds would then be 3.57 x 14 = 49.98 metres.the acceleration would be 7.14 - 3.57 = 3.57 metres per second squared.

What is distance?

Distance is the numerical measurement of how far apart two objects are. It is measured in units such as kilometers, meters, miles, feet, inches, and more. Distance can be calculated in one, two, or three dimensions. Distance is a key factor in many real-world applications, such as navigation, transport, and communication. Distance can also be used to describe relationships, such as the connection between two people.

A)To work out the distance travelled on a cycle in the first 14 seconds, we must first determine the velocity of the cycle. This can be done by dividing the distance travelled by the time taken. For example, if the cycle travelled 50 metres in 14 seconds, the velocity would be 50 / 14 = 3.57 metres per second. The distance travelled in the first 14 seconds would then be 3.57 x 14 = 49.98 metres.

B) To work out the acceleration speed in the first 4 seconds, we must first determine the change in velocity over the period of time. We can do this by subtracting the initial velocity from the final velocity. For example, if the cycle started at a velocity of 3.57 metres per second, and increased to 7.14 metres per second after 4 seconds, the acceleration would be 7.14 - 3.57 = 3.57 metres per second squared.

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complete question with diagram is

Question A) Work out the distance travelled on a cycle in the first 14 seconds. Q B) Work out thr acceleration speed in the first 4 seconds.

diagram shows trapezium in graph with velocity at y axiz and time at x axis

If θ = 31π/4 , the reference angle is

Answers

[tex]\cfrac{31\pi }{4}\implies \cfrac{8\pi +8\pi +8\pi +4\pi +3\pi }{4}\implies 2\pi +2\pi +2\pi +\pi +\cfrac{3\pi }{4}[/tex]

so the angle θ  is really 3 revolutions plus π and then a little bit more, Check the picture below for the red reference angle.

Fractions:
Solve nine-twelfths minus eleven-eighteenths equals blank.

two-twelfths
five thirty-sixths
thirty-nine two hundred sixteenths
nineteen-eighteenths

Answers

Answer:

5/36 is the simplest answer

Step-by-step explanation:

i did the math and searched it up i hope this helps

A boat heading out to sea starts out at Point A, at a horizontal distance of 734 feet from a lighthouse/the shore. From that point, the boat’s crew measures the angle of elevation to the lighthouse’s beacon-light from that point to be 14 degrees. At some later time, the crew measures the angle of elevation from point B to be 6 degrees.
Find the distance from point
A to point B. Round your answer to the nearest foot if necessary.
(30 POINTS!!!!!!!! I AM DESPERATE!!!!!!!!!!!)

Answers

Answer:

Step-by-step explanation:

the problem that would have to be plugged into the calculator would be as following

Janet wanted to determine her average phone call length over 90 days. She collected the phone bills and randomly picked ten entries to look at. The phone call lengths, in minutes, are shown below.

3, 8, 16, 8, 10, 3, 10, 3, 16, 3

Assuming that the sample was representative of all the entries on the bills, what was the mean number of minutes over 90 days?
A.
9.25
B.
6.5
C.
8
D.
7.3

Answers

Mean is the average. Add the minutes together and divide by 10.

[tex]80 \div10 = 8[/tex]

The answer is C

A lawn care company calculates the cost to mow a yard based on the number of square yards
that needs to be mowed. Approximately how many square yards will the company need to mow
for the yard shape below? The company rounds to the nearest whole square yard when
calculating the cost. Do not include units in your answer.

Answers

Answer:There’s no equation or numbers in your word problem

Step-by-step explanation:

The square yards the company needs to mow for the yard shape below is 58.88 square yards.

What is a square?

A square is a two-dimensional figure that has four sides and all four sides are equal.

The area of a square is given as side²

We have,

From the figure,

The yard shape has two shapes.

Triangle and a square.

Now,

Area of the triangle shape.

= 1/2 x 6.4 x 5.6

= 17.92 square yards

Area of the square shape.

= 6.4²

= 40.96 square yards

Now,

The square yards the company needs to mow for the yard shape below.

= 17.92 + 40.96

= 58.88 square yards.

Thus,

The square yards the company needs to mow for the yard shape below is 58.88 square yards.

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NEED ASAP!!!!!!!!!!!!!!!!!1 Identify the formula used to find total surface area, then calculate total surface area. Select the appropriate choices.

Formula:


Total Surface Area:

Answers

Answer:

The total surface area of the triangular prism is 556 square units.

Step-by-step explanation:

The given 3D figure is a triangular prism.

The formula to find the total surface area of a triangular prism is:

[tex]\boxed{\textsf{Total Surface Area}= \sf 2 A_B+(a+b+c)h}[/tex]

where:

[tex]\sf A_B[/tex] is the area of one of the triangular bases.a, b and c are the side lengths of the triangular bases.h is the height of the prism.

Therefore, the surface area of a triangular prism is the sum of the area of two congruent triangular bases and three rectangles.

The area of a triangle can be calculated by halving the product of the length of its base and height.  

The base of the triangles is 17 units and the height is 8 units.

Therefore, the area of each triangular base is:

[tex]\begin{aligned}\implies \sf Area\;of\;triangular\;base\;(A_B)&=\sf\dfrac{1}{2} \cdot17 \cdot8\\&=\sf 68\;square\;units\end{aligned}[/tex]

Therefore, the values to substitute into the total surface area formula are:

a = 11b = 14c = 17h = 10[tex]\sf A_B = 68[/tex]

[tex]\begin{aligned}\implies \textsf{Total Surface Area}&= \sf 2 A_B+(a+b+c)h\\&= \sf 2 (68)+(11+14+17)10\\&=\sf 2 \left(68\right)+(42)10\\&=\sf 136+420\\&=\sf 556 \; square\;units\end{aligned}[/tex]

Therefore, the total surface area of the given triangular prism is 556 square units.

Prove 5^7 + 5^6 is divisible by 6 without calculating

Answers

The given expression is divisible by 6 without calculating

What is divisibility?

A number can be divided if it divides evenly (leaving no remainder) into another integer. For instance, 2 divides 34 equally, making 34 divisible by 2. 34 is not divided by 3, though, because doing so would leave us with a remainder.

According to question:

We can prove that [tex]$5^7 + 5^6$[/tex] is divisible by 6 using modular arithmetic.

First, we can rewrite the expression as [tex]$5^6(5+1)$[/tex], which simplifies to [tex]$5^6 \cdot 6$[/tex].

Since 5 is not divisible by 2, we can use the fact that [tex]$a \equiv b \pmod{m}$[/tex] implies [tex]$ac \equiv bc \pmod{m}$[/tex] for any integer c to simplify our expression to [tex]$(-1)^6 \cdot 6$[/tex], or simply [tex]6 (since $5 \equiv -1 \pmod{6}$)[/tex].

Therefore, [tex]$5^7 + 5^6$[/tex] is divisible by 6.

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The scale drawing of a building has a height of 10 centimeters. The actual building is 20 feet high. How many centimeters in the scale drawing represent one foot on the actual building?

A. 1/2
B. 2
C. 10
D. 30

Answers

1/2cm in the scale drawing represents one foot on the actual building.

What is the scale factor?

The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller). When both the original dimensions and the new dimensions are known, the scale factor may be determined. The following is a basic formula to determine a figure's scale factor: Scale factor is equal to the difference between the dimensions of the old and new shapes.

Here, we have

Given: The scale drawing of a building has a height of 10 centimeters. The actual building is 20 feet high.

we have to find how many centimeters in the scale drawing represent one foot on the actual building.

The answer will be 1/2 because 1 centimeter is equal to 2 feet in reality. But since we want to know the answer of how many centimeters is in 1 foot, we will divide that in half, to get an answer of 1/2 centimeter.

Hence, 1/2cm in the scale drawing represents one foot on the actual building.

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A fish tank is in the shape of a rectangular prism. What is the volume of the fish tank? Round to the nearest tenth if necessary.

Answers

Answer:

The volume is 10 × 20 × 12 = 2,400 square inches.

Blake Shelton donated a large part of his land to the city to use as a conservation area. The area is in a shape of a rectangle with 2314 square miles. One side of the rectangle is 26 miles, what is the other side?

Answers

Answer: To find the length of the other side of the rectangle, we can use the formula for the area of a rectangle, which is:

area = length x width

We know that the area is 2314 square miles and one side is 26 miles. Let's plug these values into the formula and solve for the other side:

2314 = 26 x width

Divide both sides by 26:

width = 2314/26

Simplify:

width = 89

Therefore, the other side of the rectangle is 89 miles.

Step-by-step explanation:

Please help me put thanks

Answers

Hence, x=-2 and y=4 are the answers to the system of equations.

Why do people utilise coordinate geometry?

For the purpose of connecting algebra and geometry with the aid of line and curve graphs, coordinate geometry is necessary. Finding points on a plane is a crucial component of mathematics. It also has a number of uses in other scientific fields such dimensional geometry, calculus, and trigonometry. Use y=-2x in place of x in the first equation:

5x - 9(-2x) = -46

Simplify and find x's value:

5x + 18x = -46

23x = -46

x = -2

We can use the second equation to get y now that we know the value of x:

y = -2x = -2(-2) = 4

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How to find slope of line line from given table with answer and instructions please

Answers

Answer:

The slope of the line is 60.

Step-by-step explanation:

We are given a table of values, and h and c are substitutes from x and y. Judging by this, if we know the formula [tex]\frac{y2-y1}{x2-x1}[/tex] then we can evaluate the slope, we just have to take two of the coordinate points from the table.

Lets take (3,205) and (6,385) and plug it into the formula

[tex]\frac{385-205}{6-3}[/tex]

Evaluate

[tex]\frac{180}{3}[/tex]

Simplify the fraction

[tex]\frac{60}{1}=60[/tex]

The slope of the line is 60.

NO LINKS!!! URGENT HELP PLEASE!!!

Please help with the Special triangles #19, 21, and 23

Answers

Answers:

[tex]\begin{array}{llll} 19. & \text{x}= \frac{9\sqrt{6}}{2}, & \text{y}= \frac{9\sqrt{6}}{2}, & \text{z}= 18\\\\21. & \text{x}= 6, & \text{y}= 6\sqrt{3}, & \text{z}= 6\sqrt{6}\\\\23. & \text{x}= 10\sqrt{3}, & \text{y}= 5\sqrt{3}, & \text{z}= 15\\\\\end{array}[/tex]

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Work Shown:

Problem 19

The triangle up top is a 30-60-90 triangle. The short leg is opposite the smallest angle 30 degrees. Double the short leg to get the hypotenuse.

z = 2*9 = 18.

The long leg is found like so

[tex]\text{long leg} = (\text{short leg})*\sqrt{3}\\\\\text{long leg} = 9\sqrt{3}\\\\[/tex]

These two formulas apply to 30-60-90 triangles only.

The long leg of the 30-60-90 triangle up top is the hypotenuse of the 45-45-90 triangle at the bottom.

For 45-45-90 triangles, we can say:

[tex]\text{hypotenuse} = (\text{leg})*\sqrt{2}\\\\\text{leg} = \frac{\text{hypotenuse}}{\sqrt{2}}\\\\\text{leg} = \frac{\text{hypotenuse}*\sqrt{2}}{2}\\\\\text{leg} = \frac{9\sqrt{3}*\sqrt{2}}{2}\\\\\text{leg} = \frac{9\sqrt{3*2}}{2}\\\\\text{leg} = \frac{9\sqrt{6}}{2}\\\\[/tex]

This represents the lengths of x and y. For any 45-45-90 triangle, the two legs are the same length (the right triangle is isosceles).

--------------------------------

Problem 21

Focus on the 30-60-90 triangle up top.

The hypotenuse of 12 divides in half to get x = 12/2 = 6 as the short leg.

The long leg is [tex]6\sqrt{3}[/tex]

This is also the leg of the 45-45-90 triangle down below. Therefore, we have [tex]y = 6\sqrt{3}[/tex]

Multiply the leg by sqrt(2) to find the hypotenuse.

[tex]\text{hypotenuse} = \text{leg}*\sqrt{2}\\\\\text{z} = 6\sqrt{3}*\sqrt{2}\\\\\text{z} = 6\sqrt{3*2}\\\\\text{z} = 6\sqrt{6}\\\\[/tex]

--------------------------------

Problem 23

Focus on the triangle on the right. This is a 45-45-90 triangle.

The hypotenuse is 15sqrt(2), which must mean each leg is 15 units long. Therefore, z = 15. The unmarked vertical leg is also 15 units long.

This vertical side is the leg of the 30-60-90 triangle on the left. It's the long leg.

[tex]\text{long leg} = (\text{short leg})*\sqrt{3}\\\\\text{short leg} = \frac{\text{long leg}}{\sqrt{3}}\\\\\text{short leg} = \frac{(\text{long leg})*\sqrt{3}}{3}\\\\\text{y} = \frac{15\sqrt{3}}{3}\\\\\text{y} = 5\sqrt{3}\\\\[/tex]

Double this short leg to get the hypotenuse of the 30-60-90 triangle.

[tex]x = 2y\\\\x = 2*5\sqrt{3}\\\\x = 10\sqrt{3}\\\\[/tex]

Answer:

Question 19:

x = (9√6)/2 unitsy = (9√6)/2 unitsz = 18 units

Question 21:

x = 6 unitsy = 6√3 unitsz = 6√6 units

Question 23:

x = 10√3 unitsy = 5√3 unitsz = 15 units

Step-by-step explanation:

45-45-90 triangle

A 45-45-90 triangle is a special right triangle where the measures of its sides are in the ratio 1 : 1 : √2.  Therefore, the formula for the ratio of the sides is b : b : b√2 where:

b is each side opposite the 45 degree angles (legs).b√2 is the side opposite the right angle (hypotenuse).

30-60-90 triangle

A 30-60-90 triangle is a special right triangle where the measures of its sides are in the ratio  1 : √3 : 2.  Therefore, the formula for the ratio of the sides is c: c√3 : 2c where:

c is the shortest side opposite the 30° angle.c√3 is the side opposite the 60° angle.2c is the longest side (hypotenuse) opposite the right angle.

Question 19

Side z is the hypotenuse of a 30-60-90 triangle where the leg opposite the 30° angle measures 9 units. Therefore, c = 9.

[tex]\implies z=2c =2 \cdot 9=18\; \sf units[/tex]

Therefore, the other leg of the same triangle (opposite the 60° angle) measures c√3 = 9√3 units.

Sides x and y are the congruent legs of a 45-45-90 triangle with hypotenuse measuring 9√3 units. Therefore b√2 = 9√3, so b = (9√6)/2.

[tex]\implies x=\dfrac{9 \sqrt{6}}{2}\; \sf units[/tex]

[tex]\implies y=\dfrac{9 \sqrt{6}}{2}\; \sf units[/tex]

Question 21

Side x is the side opposite the 30° angle in a 30-60-90 triangle with a hypotenuse of 12 units. Therefore, 2c = 12 so c = 6.

[tex]\implies x=6\; \sf units[/tex]

Therefore, the other leg of the same triangle (opposite the 60° angle) measures c√3 = 6√3 units.

Side y is one of the congruent legs of a 45-45-90 triangle where the other congruent leg measures 6√3 units.

[tex]\implies y=6\sqrt{3}\; \sf units[/tex]

Side z is the hypotenuse of a 45-45-90 triangle where the congruent legs measure 6√3 units. Therefore b = 6√3.

[tex]\implies z=b\sqrt{2} = 6 \sqrt{3} \sqrt{2}=6\sqrt{6}\; \sf units[/tex]

Question 23

Side z is one of the congruent legs of a 45-45-90 triangle where the hypotenuse measures 15√2 units. Therefore, b√2 = 15√2, so b = 15.

[tex]\implies z=b=15\; \sf units[/tex]

Side x is the hypotenuse of a 30-60-90 triangle where the leg opposite the 60° measures 15 units. Therefore, c√3 = 15, so c = 5√3.

[tex]\implies x=2c=2 \cdot 5\sqrt{3}=10\sqrt{3}\; \sf units[/tex]

Side y is the side opposite the 30° angle in a 30-60-90 triangle where the hypotenuse measures 10√3 units. Therefore, 2c = 10√3, so c = 5√3.

[tex]\implies y=c=5\sqrt{3}\; \sf units[/tex]

Please help, Thanks!

Answers

The value of y is 5 when x = -31/3.

What is an Equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.

There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form.

Thus, from the given question, we can see that:

The value of y is -3 when x = -17/5.

The value of y is 0 when x = 1/2.

The equation that represents this relationship is y = (2x - 1) / (x + 6).

However, the value of y cannot be 2 for any value of x that satisfies this equation.

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find the length of blue rectangle2 3 to the length of green rectangle 4 6

Answers

the length of blue rectangle 2 to the width of green rectangle 6 is: 2/6 = 0.33 (rounded to two decimal places)

How to find the length of blue rectangle?

To find the length of blue rectangle 2 in relation to the length of green rectangle 4, we need to divide the length of blue rectangle 2 by the length of green rectangle 4.

So, the length of blue rectangle 2 to the length of green rectangle 4 is:

2/4 = 0.5

To find the length of blue rectangle 2 in relation to the width of green rectangle 6, we need to divide the length of blue rectangle 2 by the width of green rectangle 6.

So, the length of blue rectangle 2 to the width of green rectangle 6 is:

2/6 = 0.33 (rounded to two decimal places)

Note that the ratio of the length of blue rectangle 2 to the length of green rectangle 4 is different from the ratio of the length of blue rectangle 2 to the width of green rectangle 6.

A rectangle is a two-dimensional shape that has four sides and four right angles. It is a type of quadrilateral, which means a four-sided polygon.

In a rectangle, the opposite sides are parallel and have equal length. This makes it different from a square, which is also a rectangle but has four equal sides.

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