Please help with this question

The statement is true, the point (8, 7) is a solution to the inequality.

Here we have the following statement:

"(8, -7) is a solution to the inequality y < 12x − 9"

To check if that is true, we just need to replace the values of the point on the inequality and check if the ienquaity becomes true.

We will get:

-7 < 12*8 - 9

-7 < 87

This is true, 87 is a number larger than -7, then the statement is true, (8, -7) is a solution of the inequality.

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a) The value of x from the proportion is x = 2/5

b) The value of x from the proportion is x = 8

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the value of A is

a)

3 / ( x + 2 ) = ( 5 / 4 )   be equation (1)

On simplifying the equation , we get

Multiply by ( x + 4 ) on both sides of the equation , we get

( 5/4 ) ( x + 2 ) = 3

Multiply by 4 on both sides of the equation , we get

5 ( x + 2 ) = 12

On further simplification , we get

5x + 10 = 12

Subtracting 10 on both sides of the equation , we get

5x = 2

Divide by 5 on both sides of the equation , we get

x = 2/5

Therefore , the value of x is 2/5

b)

( x + 2 ) / 5 = ( x - 2 ) / 3   be equation (2)

On simplifying the equation , we get

Multiply by 5 on both sides of the equation , we get

( x + 2 ) = 5( x - 2 ) / 3

Multiply by 3 on both sides of the equation , we get

3 ( x + 2 ) = 5 ( x - 2 )

On further simplification , we get

3x + 6 = 5x - 10

Subtracting 3x on both sides of the equation , we get

2x - 10 = 6

Adding 10 on both sides of the equation , we get

2x = 16

Divide by 2 on both sides of the equation , we get

x = 8

Therefore , the value of x is 8

Hence , the proportion is solved

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Answer:

see explanation

Step-by-step explanation:

A translation of [tex]T_{(5,2)}[/tex] means

add 5 to the original x- coordinate and add 2 to the original y- coordinate.

A (1, - 2 ) → A' (1 + 5, - 2 + 2 ) → A' (6, 0 )

B (- 3, - 3 ) → B' (- 3 + 5, - 3 + 2 ) → B' (2, - 1 )

C (3, 5 ) → C' (3 + 5, 5 + 2 ) → C' (8, 7 )

Answer:

Refer to the step-by-step

Step-by-step explanation:

∠1 and ∠2 lie in the alternate interior of the parallel lines and are on opposite sides of the transversal. So, ∠1 and ∠2 are equal angles.

The solutions of each expression for n are given as follows:

1. n = 1.5972.

2. n = 11.4688.

3. n = 6.5025.

4. n = 1.81.

5. n = 28.9835.

All the five expressions in this problem are multiplication operations involving two decimal numbers.

Hence, to obtain the solution for n of each expression, we must simply apply the multiplication operation of the two decimals, using a calculator.

The result of each expression is given at the beginning of the answer.

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For geometric shape no.4,∠1=26°,∠2=154°,∠3=26°,∠4=26°,

∠5=154°,∠6=154°,∠7=26°.

What are geometric shapes?

In Mathematics, Geometric shapes are the figures which demonstrate the shape of the objects we see in our everyday life. In geometry, shapes are the forms of objects which have boundary lines, angles and surfaces. There are different types of 2d shapes and 3d shapes.

Shapes are also classified with respect to their regularity or uniformity. A regular shape is usually symmetrical such as a square, circle, etc. Irregular shapes are asymmetrical. They are also called freeform shapes or organic shapes. For example, the shape of a tree is irregular or organic.

In plane geometry, the two-dimensional shapes are flat shapes and closed figures such as circles, squares, rectangles, rhombus, etc.  In solid geometry, the three-dimensional shapes are cube, cuboid, cone, sphere and cylinder. We can observe all these shapes in our daily existence also. For example books (cuboid shape), glasses (cylindrical shape), traffic cones (conical shape) and so on.

Now,

∠1+154°=180° -->∠1=26°   (supplementary angles)

∠1=∠3  (opposite angles) -->∠3=26°

∠2+∠3=180°

∠2=154°

∠1=∠7 --->∠7=26°

∠7+∠6=180° (supplementary angles)

∠6=154°

∠5+∠7=180° (supplementary angles)

∠5=154°

∠4+∠5=180° (supplementary angles)

∠4=26°

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Encoding simply means the process of putting a sequence of characters like letters, numbers and other special characters into a specialized format.

It should be noted that a type of code, that is extremely difficult to break, and one which makes use of a large matrix to encode a message is the encoding matrix.

Here, the receiver of the message decodes it by using the inverse of the matrix. In their case, the first matrix is the encoding matrix and the inverse is the decoding matrix.

To decode the message, we simony have to take the string of coded numbers and then multiply it by the inverse of the matrix in order to get the original string of numbers.

Encoding simply means the process of putting a sequence of characters like letters, numbers and other special characters into a specialized format.

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Answer:

Step-by-step explanation:

4x + 3 + 2x + 9 = 180°

6x + 12 = 180

6x = 180 - 12

6x = 168

x = 168 : 6

x = 28°

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

4 × 28 + 3 + 2 × 28 + 9 = 180    (remember PEMDAS)

112 + 3 + 56 + 9 = 180

180 = 180

Subtract the given angle from 180° and the missing angle measurements is 42°.

What is meant by angle ?

A+B+C=180°

57°+81°+C°=180°

138°+C=180°

C=138°-180°

C=42°.

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Answer:

T < 5

Step-by-step explanation:

High School A: A(t) = 800 + 35t

High School B: B(t) = 550 + 85t

To find the interval of years in which High School A will have more students than High School B, we need to find the years in which A(t) > B(t).

So, we need to solve the inequality A(t) > B(t)

800 + 35t > 550 + 85t

250 > 50t

t < 5

Therefore, High School A will have more students than High School B for the first five years.

The interval of years, t, for which High School A will have more students than High School B is t < 5

The error interval due to rounding:

71.25 ≤ t < 71.35

Now, According to the question:

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

"Information available from the question"

Paul won a race with a time of 71. 3 seconds.

The time, t, is to the nearest tenth of a second.

So, Rounding off to nearest tenth

Rounded to the nearest 0.1 or the Tenths Place will be

The error interval due to rounding:

So, 71.25 ≤ t < 71.35

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Answer:

Step-by-step explanation:

i dont knpw

The inequality statement j/6 > 3 is true when j = 24.

To substitute the value of j into the inequality statement, you will replace j with 24 and then simplify the expression.

j / 6 > 3

24 / 6 > 3

Simplifying, we get

4 > 3

Since 4 is greater than 3, the inequality statement is true.

You can also check by multiplying both sides of inequality by 6

j > 18

24 > 18

This is true because 24 is greater than 18. Therefore, the inequality statement j/6 >3 if j =24 is true.

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15 x 14 x 13 x ... x 3 x 2 x 1 is the possible batting orders.

A baseball coach can create 15! (15 factorial) different batting orders for a team of 15 players if there are nine positions to fill in the lineup. This is because, for the first spot in the lineup, there are 15 options, for the second spot there are 14 options, and so on, leading to 15 x 14 x 13 x ... x 3 x 2 x 1 possible batting orders.

The process of breaking or decomposing an entity (such as a number, a matrix, or a polynomial) into a product of another entity, or factors, whose multiplication results in the original number, matrix, etc., is known as factorisation or factoring.

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The equation in the problem is in slope intercept form. The slope-intercept form of a linear equation is: y = mx + b

What is meant by slope?

The slope-intercept form of a linear equation is: y = mx + b

Where m is the slope and b is the y-intercept value.

Therefore, for this equation y = -2x - 7

The Slope is: m = -2

The Y=Intercept is b = -7 (or)

slope and y-intercept from the graph: (0, -7)

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Answer:

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

We know that corresponding sides of similar figures are proportional.

Thus we have equal ratios:

Solve it for x:

Answer:

a. The result is always an integer because integers are not fractions or decimals.

b. Sorry I don't have an answer for b i don;t know what that means. :(

Answer:

We can find two other points on the line passing through (1,5) and (3,-1) by using the slope-intercept form of a line: y = mx + b where m is the slope of the line, and b is the y-intercept.

To find the slope (m) of the line, we can use the formula: m = (y2 - y1) / (x2 - x1)

Plugging in the coordinates of the two given points: m = (-1 - 5) / (3 - 1) = -6 / 2 = -3

To find the y-intercept (b) of the line, we can use one of the given points and substitute the values of x, y and m into the equation y = mx + b.

Plugging in the coordinates of the point (1,5) and the value of m: 5 = -3(1) + b, b = 8

So the equation of the line is y = -3x + 8

We can use this equation and any x value to find two other points on the line. For example, if we choose x = -2, we get y = -3(-2) + 8 = 2

so the point (-2,2) is on the line.

If we choose x = 0, we get y = -3(0) + 8 = 8

so the point (0,8) is on the line.

So two other points on the line passing through (1,5) and (3,-1) are (-2,2) and (0,8)

If I helped you, could you please make my answer best?

Answer:

x + y = 4

m = -1

Step-by-step explanation:

(3 - 5) / (1 - (-1))

m = -2/2

(y - 5) = -1 × (x - (-1))

y - 5 = - x - 1 = 0

Answer: 16x^38y^22

Step-by-step explanation:

Re-order terms so constants are on the left
(−xy)2(2x9y5)4(−)2(295)4

Distribute exponent

(−xy)2(2x9y5)4(−)2(295)4

Evaluate the exponent

(−1)2(xy)2⋅(2x9y5)4(−1)2()2⋅(295)4

The number of different sandwiches that Javier can order, given the number of types of meat and cheeses, is 12 sandwiches.

Javier has 3 choices for the type of meat and 4 choices for the cheese, so the total number of different sandwiches he can order is the product of the number of choices for each ingredient.

To find the total number of different sandwiches, you can multiply the number of meat choices by 4 the number of cheese choices.

The number of sandwiches Javier can order are:

= 3 x 4

= 12 sandwiches

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The number line inequality that best represents the possible number of shirts the company can ship in a package without playing extra for shipping is given by the image presented at the end of the answer.

Before putting any T-shirts in the box, the package weighs 1.5 oz. Each shirt weighs 5 oz, hence the total weight function for x shirts is given as follows:

y = 1.5 + 5x.

The maximum weight without needing to pay extra is of 13 ounces, hence the inequality is given as follows:

5x + 1.5 <= 13

x <= 11.5/5

x <= 2.3.

Which can be simplified as:

x <= 2.

(as the number of shirts is a countable amount).

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Eva will earn $10.50 interest.

Compound interest is computed as interest on the principle of an account plus any accrued interest.

Compound interest can be calculated using the following formula:

x = P(1 + r/n[tex])^{nt}[/tex]

,where x = compound interest

P = principal (the initial deposit or loan amount)

r = annual interest rate

n = the number of compounding periods per unit of time

t = the number of time units the money is invested or borrowed for

Given:

Eva deposited $50 in an account earning 10% interest compounded annually.

First, convert R as a percent to r as a decimal

r = R/100

r = 10/100

r = 0.1 rate per year,

Then solve the equation for A

A = P(1 + r/n[tex])^{nt}[/tex]

A = 50.00(1 + 0.1/1[tex])^{2}[/tex]

A = $60.50

Therefore, she will earn $10.50 of interest.

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Answer:

Step-by-step explanation:

For the cat's heart to beat 45 times in 15 seconds

for 1 second, we must divide 45 by 15

the answer will be 3 beats per second

Answer:

see explanation

Step-by-step explanation:

the area (A) of a rectangle is calculated as

A = length × width

  = 3x(x + 4) ← distribute parenthesis by 3x

A = 3x² + 12x

when x = 1 , then

A = 3(1)² + 12(1) = 3 + 12 = 15 yd²

Answer:

b.  20°

Step-by-step explanation:

Find the missing angle in the top triangle:

180 - 40 - 20 = 120

because, the sum of interior angles of a triangle is 180.

The top angle of the bottom triangle = 120 because it is a vertical angle to the one you just found.

Now find the missing angle (x) on the bottom:

x = 180 - 120 - 40 = 20

Answer: I need help with this what is the answer

Step-by-step explanation:

The point (4, 3) is a viable solution.

At least two linear inequalities in the same variables make up a system of linear inequality in two variables. The graph of a linear inequality is the graph of all solutions to the system, and the solution of a linear inequality is the ordered pair that resolves all inequalities in the system.

Given:

A basket holds at most 14 pounds of apples and oranges.

There are at least 3 pounds of apples in the basket.

This graph shows the system that represents this scenario, where x is the weight of the apples and y is the weight of the oranges.

That means, we have the system of inequalities,

x + y ≤ 14,

x ≥ 3

Option B and C are discarded.

And y ≥ 0.

Option A is also discarded.

Substituting (4, 3),

x + y ≤ 14,

7  ≤ 14.

Therefore, (4, 3) is a solution.

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The complete question:

A basket holds at most 14 pounds of apples and oranges. There are at least 3 pounds of apples in the basket. This graph shows the system that represents this scenario, where x is the weight of the apples and y is the weight of the oranges. Which point represents a viable solution?

The correct explaination to calculate the total number of miles that Cody hiked in two days is Step 1: Multiply 1 × 5. Step 2: Multiply 2 × 3. Step 3: Add the two products.

First of all, we must know the formula of average speed. The formula is as follows -

Average speed = distance ÷ time

Using this formula, we can calculate distance for Saturday and Sunday and subsequently add the distance to find the number of miles that Cody hiked in two days.

For Saturday -

Distance = 1 × 5

Performing multiplication

Distance = 5 miles

For Sunday -

Distance = 3 × 2

Performing multiplication

Distance = 6 miles

Total distance hiked = 5 + 6

Performing addition

Total distance hiked = 11 miles

Thus, the correct explaination is Step 1: Multiply 1 × 5. Step 2: Multiply 2 × 3. Step 3: Add the two products.

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The complete question is -

Cody hiked at an average speed of 1 mile per hour for 5 hours on Saturday. He hiked an average speed of 2 miles per hour for 3 hours on Sunday. Which explanation correctly tells how to calculate the total number of miles that Cody hiked in two days? Step 1: Divide 1 ÷ 5. Step 2: Divide 2 ÷ 3. Step 3: Subtract the two quotients. Step 1: Multiply 1 × 5. Step 2: Multiply 2 × 3. Step 3: Add the two products. Step 1: Divide 1 ÷ 5. Step 2: Divide 2 ÷ 3. Step 3: Add the two quotients. Step 1: Multiply 1 × 5. Step 2: Multiply 2 × 3. Step 3: Subtract the two products.

The number of tables for 15 guests will be 3 tables.

The number of tables for 25 guests will be 5 guests

The number of tables for 50 guests will be 10.

Ratio in Mathematics simply demonstrates how many times one number can be able to fit into another number. It should be noted that ratios contrast two numbers by dividing them. In this case, A/B will be the formula if one is comparing one variable (A) to another variable (B).

In this case, Trey is having a party. He'll have 2 tables for every 10 guests. This means that 1 table will be for 10/2 = 5 guest

The number of tables for 15 guests will be:

= 15 / 5.

= 3 tables.

The number of tables for 25 guests will be:

= 25 / 5

= 5 guests

The number of tables for 50 guests will be:

= 50 / 5

= 10

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