To solve this system of equations, we can use the method of elimination. The goal is to eliminate one of the variables, such as x or y, by adding or subtracting the equations.
First we can eliminate the y variable by adding the two equations together:
X + 3y = 14
2x - 3y = -8
3x = 6
Dividing both sides by 3:
x = 2
Now we have the value of x, we can substitute it back into one of the original equations:
X+3y=14
2 + 3y = 14
Subtracting 2 from both sides:
3y = 12
Dividing both sides by 3:
y = 4
So the solution of the system of equations is (x,y) = (2,4)
To check the solution, we can substitute the values back into the original equations:
x + 3y = 14
2 + 3(4) = 14
2 + 12 = 14
14 = 14
and
2x - 3y = -8
2(2) - 3(4) = -8
4 - 12 = -8
-8 = -8
As the equation holds true, the solution (2,4) is correct.
In how many ways can four people with different heights line up single-file so that exactly two people are taller than the person immediately behind them?
Are 5 ways for four people with different heights to line up single-file so that exactly two people are taller than the person immediately behind them.
What is Principle of Inclusion-Exclusion?Let's call the four people A, B, C, and D, and let's assume that their heights are distinct and that A is the shortest. Then, there are 3! = 6 ways for them to line up single-file without any restrictions on their heights. However, this counts the cases where A is taller than B, which is not allowed.
To correct for this overcounting, we can subtract the number of ways where A is taller than B, which is 2! = 2, since there are 2! ways to arrange B, C, and D in this case.
However, this also subtracts the case where A is taller than both B and C, which is not allowed.
So, we need to add the number of ways where A is taller than both B and C, which is 1, since there is only 1 way to arrange B, C, and D in this case. Therefore, by PIE, the number of ways for A, B, C, and D to line up single-file so that exactly two people are taller than the person immediately behind them is:
6 - 2 + 1 = 5
So, there are 5 ways for four people with different heights to line up single-file so that exactly two people are taller than the person immediately behind them.
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what single transformation will you have to apply to this parabola to make it fit the inside curve of the banana? answer
The shape of the banana curve is a parabola, the number of zeros is 1, the zeros of the polynomial are (-3, 4), and the quadratic polynomial is a(x² - 16).
(i) The shape of the banana curve from the figure is a parabolic shape.
(ii) The number of zeros of the polynomial for the shape of the banana is 1.
(iii) To find the zeroes of f(x) = x² - x - 12, we need to solve the equation x² - x - 12 = 0 using the quadratic formula.
x = (-b ± √(b² - 4ac)) / 2a, where a = 1, b = -1, c = -12
x = (1 ± √(1 + 48)) / 2
x = (1 ± √49) / 2
So, the zeroes are (1 + 7) / 2 = 4 and (1 - 7) / 2 = -3.
(iv) If the representation of the banana curve whose one zero is 4 and the sum of the zeroes is 0, then the equation is x = -4 and x = 4.
The quadratic polynomial is f(x) = a(x - 4)(x + 4) = a(x² - 16).
Since the coefficient a is not given, we cannot determine the exact polynomial, but we know it must be of form f(x) = a(x² - 16).
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--The given question is incomplete; the complete question is
"The below quadratic function can model the natural shape of a banana. Now, we know that a parabolic shape must have a quadratic function, therefore an equation in standard form of f(x) = ax² + bx + c. To find an equation for the parabolic shape of the banana, we need to find the values of a, b, and c. From the banana picture above, we can see that a quadratic function is able to model the banana quite accurately, with a=0.1, b=0, and c=0. Therefore, the equation is f(x) = 0.1x²
(i) Name the shape of the banana curve from the above figure.
(ii) Find the number of the zeroes of the polynomial for the shape of the banana.
(iii) If the curve of banana represented by f(x) = x² - x - 12. Find its zeroes.
(iv) If the representation of banana curves whose one zero is 4 and the sum of the zeroes is 0, then find the quadratic polynomial."--
How can you use a rate to compare the costs of two boxes of cereal that are different sizes?
Find the unit rate:Gordon types 1800 words in 25 minutes.
Answer:
You can find the unit rate for each cereal an see which one is a better deal. You divide and quantity of cereal by the price.
72 words per minute
Step-by-step explanation:
Say one box of cereal has 100 ounces and it cost $4.50 and another box of cereal has 150 ounces for $5.25
4.50/100 = .045 cents per ounce the other box would be
5.25/150 = .035 cents per ounce.
1800/25 = 72
Please help! Find GCF of 10x^2 -21x-49
Answer: Your GCF would be 1!
Step-by-step explanation:
First you need to:
Factor 10x² as shown - 2 · 5 · x · x
Factor 21x as shown - 3 · 7 · x
Factor 49 as shown: 7 · 7
GCF = 1
I hope this helps!
Review the table showing wind speed, y, in miles per hour, measured x hours after midnight.
Hours after Midnight
Wind Speed (mph)
1
4. 3
2
4. 2
4
5
7
6. 8
9
8
10
8. 1
13
7. 2
17
6
20
5. 1
Which trigonometric function best models this data?
y = 1. 87sin(0. 29x + 6. 13) + 4. 79
y = 1. 87sin(0. 29x + 4. 79) + 6. 13
y = 1. 87sin(–0. 29x + 6. 13) + 4. 79
y = 1. 87sin(–0. 29x + 4. 79) + 6. 13
The trigonometric function that accurately fits the data is as follows: y = 1.87sin(–0.29x + 4.79) + 6.13. So the option D is correct.
The following is the trigonometric function that best represents the data:
y = 1.87sin(-0.29x + 4.79) + 6.13
Check the values in the table using the aforementioned equation;
At x = 1
y = 1.87sin(-0.29 x 1 + 4.79) + 6.13
y = 1.87sin(4.5 rad) + 6.13
y = 4.3
At x = 2
y = 1.87sin(-0.29 x 2 + 4.79) + 6.13
y = 1.87sin(4.21 rad) + 6.13
y = 4.49
At x = 4
y = 1.87sin(-0.29 x 4 + 4.79) + 6.13
y = 1.87sin(3.63 rad) + 6.13
y = 5.2
At x = 7
y = 1.87sin(-0.29 x 7 + 4.79) + 6.13
y = 1.87sin(2.76 rad) + 6.13
y = 6.8
At x = 9
y = 1.87sin(-0.29 x 9 + 4.79) + 6.13
y = 1.87sin(2.18 rad) + 6.13
y =7.7
At x = 10
y = 1.87sin(-0.29 x 10 + 4.79) + 6.13
y = 1.87sin(1.89 rad) + 6.13
y = 7.9
At x = 13
y = 1.87sin(-0.29 x 13 + 4.79) + 6.13
y = 1.87sin(1.02 rad) + 6.13
y = 7.72
At x = 17
y = 1.87sin(-0.29 x 17 + 4.79) + 6.13
y = 1.87sin(-0.14 rad) + 6.13
y = 5.9
At x = 20
y = 1.87sin(-0.29 x 20 + 4.79) + 6.13
y = 1.87sin(-1.01 rad) + 6.13
y = 4.6
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The complete question is:
Review the table showing wind speed, y, in miles per hour, measured x hours after midnight. Which trigonometric function best models this data?
Hours after Midnight Wind Speed (mph)
1 4.3
2 4.2
4 5
7 6.8
9 8
10 8.1
13 7.2
17 6
20 5.1
y = 1.87sin(0.29x + 6.13) + 4.79
y = 1.87sin(0.29x + 4.79) + 6.13
y = 1.87sin(–0.29x + 6.13) + 4.79
y = 1.87sin(–0.29x + 4.79) + 6.13
laverne starts counting out loud by 5's. she starts with $7$. as laverne counts, shirley sums the numbers laverne says. when the sum finally exceeds 5000, shirley runs screaming from the room. what number did laverne last say before shirley flees?
Laverne said the number 222 before Shirley flees
What is an arithmetic sequence?It is a series of numbers that increase or decrease by a constant amount called the ratio of the progression. It is increasing when the ratio is positive and decreasing when it is negative.
To solve this exercise we are going to apply the formula of the arithmetic sequence:
S = (n/2)[a1 + a1 + d(n - 1)]
Where;
n= number of termsa1= first terma1 + d(n - 1) = last termd = common difference between termsInformation about the problem:
a1 = 7d = 5S = 5000Clearing the (n) variable we get:
S = (n/2)[ 7 + 7 + 5(n-1) ] > 5000
(n/2) [ 9 + 5n ] > 5000
n[ 9 + 5n ] > 10000
5n^2 + 9n - 10000 > 0
Solving the quadratic question we get the values for the (x) number
x= {- b ± √ [b² - (4* a*c)]} / (2 *a)
x= {- 9 ± √ [9² - (4* 5*-10000)]} / (2 * 5)
x= {- 9 ± √ (81+ 200000)} / 10
x= {- 9 ± √200081} / 10
x= (- 9 ± 447.30) / 10
x = 43.83
n > 43 then n = 44
Calculating the 44th term, we get:
aₙ= a + d*(n-1)
a44 = [ 7 +5(44 - 1) ]
a44 = [ 7 +5(43) ]
a44 = 222
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What are all values of x for which the graph of y = x^4 - 6x^2 + x is concave downward? Show your work and justify your answer.
Answer:
A function is concave downward if its second derivative is negative. To find the values of x for which the graph of y = x^4 - 6x^2 + x is concave downward, we need to find the values of x for which the second derivative of y is negative.
The second derivative of y = x^4 - 6x^2 + x is y'' = 12x^2 - 12x
To find the values of x for which y'' is negative, we need to find the roots of the equation 12x^2 - 12x = 0.
We can factor the equation as: 12x(x-1) = 0
which gives us x = 0 and x = 1 as the roots.
Now, we need to test the sign of the second derivative in the intervals between the roots.
In the interval (0,1)
y'' = 12x^2 - 12x is positive, therefore the function is not concave downward in this interval.
In the interval (-infinity,0)
y'' = 12x^2 - 12x is negative, therefore the function is concave downward in this interval.
In the interval (1,infinity)
y'' = 12x^2 - 12x is negative, therefore the function is concave downward in this interval.
Therefore, the values of x for which the graph of y = x^4 - 6x^2 + x is concave downward are all values of x less than 0 or greater than 1.
When parking a car in a downtown parking lot, drivers pay according to the number of hours or fraction thereof. The probability distribution of the number of hours cars are parked has been estimated as follows:
A. Mean=
B. Standard Deviation=
The cost of parking is 5 dollars per hour. Calculate the mean and standard deviation of the amount of revenue each car generates.
A. Mean=
B. Standard Deviation
col1 X 1 2 3 4 5 6 7 8
col2 P(X) 0. 229 0. 113 0. 114 0. 076 0. 052 0. 027 0. 031
0. 358
The mean is 24.2 and the standard deviation is 8.7.
MeanThe mean amount of revenue each car generates can be calculated by multiplying the mean number of hours parked by the cost per hour. To find the mean number of hours parked, we need to multiply each possible number of hours by its probability and add them up.
E(X) = (1 * 0.229) + (2 * 0.113) + (3 * 0.114) + (4 * 0.076) + (5 * 0.052) + (6 * 0.027) + (7 * 0.031) = 4.84 hours
So, the mean revenue is 4.84 * 5 = 24.2 dollars
Standard DeviationThe standard deviation of the revenue can be calculated by finding the standard deviation of the number of hours parked and then multiplying by the cost per hour.
SD(X) = sqrt( (1^2 * 0.229) + (2^2 * 0.113) + (3^2 * 0.114) + (4^2 * 0.076) + (5^2 * 0.052) + (6^2 * 0.027) + (7^2 * 0.031) - (4.84)^2) = 1.74 hours
So, the standard deviation of the revenue is 1.74 * 5 = 8.7 dollars.
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Can someone help me with this three part question please? I need help ASAP
It is not a triangle.
Does given feet is a triangle or not?
The Triangle Inequality theorem states that in a triangle, , where and are shorter side lengths and is the longest side length.
Given that 5+9<15, the given side lengths do not compose a valid triangle.
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22. The Columbus Junior Soccer League is
selling raffle tickets to raise money for new
uniforms and equipment. So far, league
members have earned $1,218 from selling
84 tickets. Use the equation 1,218 ÷ 84 = r
to find the cost of each raffle ticket. Then
use the answer to find what the total
earnings will be after 90 raffle tickets have
been sold.
The cost of each raffle ticket is thus $14.50, and the cost of 90 tickets is $1305.
What is division and multiplication?In multiplication, the numbers being multiplied are referred to as factors, and the end result is referred to as the product. In division, the dividend is the number being divided, the divisor is the number dividing it, and the quotient is the outcome of the division.
Given that the equation to find the cost of a single ticket is:
1218 ÷ 84 = x
x = 14.5
The cost of each raffle ticket is thus $14.50.
The cost of 90 tickets is given by:
90 × 14.50 = y
y = 1305.
Hence, the cost of 90 tickets is $1305.
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Ron sells bananas for $0. 60 each. How many bananas did Ron sell if he made $150. 00, after taking off $39. 00 for his banana stand rental?
5) A 345ml tin of paint costs £4.80
A 250ml tin of paint costs £3.35
Which tin is better value for money?
A 250ml tin of paint costs £3.35 tin is better value for money.
What does the phrase "value for money" mean?The best balance of price, quality, and sustainability to satisfy consumer needs is referred to as best value for money. Cost in this sense refers to taking into account total cost of ownership.
Value for money is seen as an effective framework for evaluating performance in not-for-profit organisations since it takes into account both the costs and benefits of delivering a service.
A 345ml tin of paint costs £4.80
345 / 4.80 = 71.87
A 250ml tin of paint costs £3.35
250 / 3.35 = 74.62
so
A 250ml tin of paint costs £3.35 is 74.62,
A 250ml tin of paint costs £3.35 tin is better value for money.
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y=x^2+6x+8 solve by factoring.
Answer:
To factor the equation y = x^2 + 6x + 8, we can use the method of finding the factors of the constant term (8) that add up to the coefficient of the x term (6).
In this case, the factors of 8 are 1 and 8, and -1 and -8. But only -1 and -8 add up to 6, so we can factor the equation as:
(x + 8)(x + 1) = 0
So the solutions are x = -8 and x = -1.
PLEASE HELP:
The deductions from Jennifer Miller's monthly pay are federal income tax (FIT) of $87, state income tax (SIT) of 2. 5% of gross, (CIT) city income tax of 1. 2% of gross, social security, and medicare. Her next monthly pay is $3,981. 22. Find Jennifer's monthly gross pay.
A) $4,529. 05
B) $4,551. 23
C) $4,576. 58
D) $4,589. 8
Jennifer's monthly gross pay will be $4,589.08
Figures used to determine Jennifer's monthly gross compensation
Calculate the overall tax percentage deductions as a first step.
Using this equation
State tax + City tax + Social Security + Medicare = Total tax percentage deductions
Let's enter the formula.
Total tax deductions as a percentage equal: 3.5% + 2.5% + 6.2% + 1.45%
Total tax deductions as a percentage equal 13.65%
Now let's calculate the monthly gross pay
Total tax percentage deductions = 2.5% +1.2% +6.2% +1.45%
Total tax percentage deductions = 11.35%
Now let's calculate the monthly gross pay
Monthly gross pay= ($3,981.22 +87)/(1-11.35%)
gross pay= ($3,981.22 +87)/0.8865
Monthly gross pay=$4,068.22/0.8865
Monthly gross pay= $4,589.08'
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neil uses 41-cent stamps and 8-cent stamps to mail a gift card to a friend. if the postage is $1.95, how many of each stamp did neil use?
If Neil uses 41-cent stamps and 6-cent stamps to mail a gift card to a friend , then the number of 41 cent stamp used is 3 and number of 6 cent stamps used is 12 .
Let number of 41 cents stamps used be = x ;
and let number of 6 cents stamps used be = y ;
converting amount 41-cents in dollars is = $0.41 ;
and converting amount 6-cents in dollars is = $0.06 ;
the amount for which Neil used 41-cent stamps , 6-cent stamps is = $1.95 ;
this situation in equation form is written as ⇒ 0.41x + 0.06y = 1.95
Multiplying on both sides by 100 , we get
⇒ 41x + 6y = 195 ;
⇒ y = (195 - 41x)/6 ;
We will test this equations for values of x and y , the number of stamps must be whole numbers .
If x = 1 , then value of y is = 25.66
If x = 2 , then value of y is = 18.833
If x = 3 , then value of y is = 12
If x = 4 , then value of y is = 5.166 .
the only value of x and y which shows a whole number as an output is : If x = 3 , then y = 12 .
Therefore , Neil used "3" 41-cents stamps and "12" 6-cent stamps .
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Select the exclusion that fits best with this problem. 13x^6/51x^4.
a, b = 0, a 2 + ab + b 2 = 0 x, y, z = 0 1 + y + y 2, y = 0, 1 - y = 0 2x - 1 = 0, 4x 2 + 2x + 1 = 0 x = 0
What is denominator?
Denominator can be defined as the bottom number in a fraction that shows the number of equal parts an item is divided into. It is the divisor of a fraction
The given problem is
13x^6
51 x^4
From here, we must exclude all values that make the denominator equal to zero.
This is defined if and only if
x ≠ 0
Even the given expression can be simplified to obtain:
13x^6
51 x^4
The exclusion is
x ≠ 0
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Answer:
x = 0
Step-by-step explanation:
I got it correct on Odyssey. Feel free to let me know if you need any help in the future : )
jennifer takes 2 hours to make a loaf of bread and 1 hour to make a dozen cookies. janet takes 3 hours to make a loaf of bread and 3/4 hours to make a dozen cookies. who, if either, has an absolute advantage baking bread? who, if either, has an absolute advantage making cookies?
When it comes to baking bread, Jennifer has an absolute advantage. But when it comes to making cookies, Janet has an absolute advantage.
Absolute advantage is used when there is efficient production. It is used to describe the ability of a person, place, business, or nation to produce a lot of goods or services with the same amount of inputs in a given amount of time.
Here, a loaf of bread baked by Jennifer takes about 2 hours but it takes about 3 hours for Janet to bake a loaf of bread. So, Jennifer has an absolute advantage in baking a loaf of bread.
Also, Jennifer takes about 1 hour to bake 12 cookies but it only takes 3/4 hours or 45 minutes for Janet to bake cookies 12 cookies. So, Janet has an absolute advantage in baking a dozen cookies.
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Mariya built a garden in her backyard that measured 14 feet
by 16 feet, and built a fence around it.
Later on, she decided to change the size of it to 28 feet by
12 feet.
How much extra fence does she need to buy to build
around her new garden?
feet
As per the perimeter of rectangle, the the amount area of fence does she need to buy to build around her new garden is 40 feet.
In math the term called perimeter is defined as the length of the outline of a shape. And the general form to calculate the perimeter of the rectangle is written as,
=> P = 2(l + b)
here l refers the length of rectangle and b refers the breadth of rectangle.
Here we know that the gardens old measurements is written as,
=> length = 14 feet
=> breadth = 16 feet.
Then the perimeter of garden is calculated as,
=> P1 = 2(14 + 16)
=> P1 = 2(30)
=> P1 = 60
Then the new measurement is given that,
length = 28 feet
width = 12 feet.
Then the new measurement is calculated as,
=> P2 = 2(28 + 12)
=> P2 = 2(40)
=> P2 = 80
Then additional fence does she need to buy to build around her new garden is
=> P = P2 - P1 = 80 - 40
=> P = 40 feet.
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NEED HELP ASAP
The equation 300x + 50 = 600 represents the number of
premium tickets x and the number of discount tickets y for a horse race that can be bought with $600. If no premium tickets are purchased, how many discount tickets can be
purchased with $600?
Answer:
12
Step-by-step explanation:
Assuming that $300 and $50 are the respective cost(s) of the premium and discount tickets, if we didn't buy any premium tickets, we could afford to buy 12 discount tickets at $50 because 12($50) = $600
A cylinder and a cone have congruent bases and heights what will be the relationship of the volumes of the two figures
the volike of the cylinder will be twice the volume of the cone
The ratio of the volume of the figure is 3:1.
The term called volume in math is defined as the space occupied within the boundaries of any three-dimensional solid
Here we know that the cylinder and a cone are having equal radii of their bases and heights.
Then let us consider that radius of the cone is equal to radius of the cylinder is defined as r and Height of the cone and height of the cylinder is defined as h.
Then their volume is written as,
=> Volume of cylinder /volume of cone
=> πr²h/ (1/3)πr²h
When we simplified this on, then we get the fraction as,
=> 3/1
Then the resulting ratio is 3:1.
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I need Help ASAP thanks if you do help me out!
Which is true about the function shown below between the points = 4 and x = 6?
Answer:
c. non-linear and increasing
Step-by-step explanation:
Which of the following statements is false? A. In the ordered pair (3, 7), 3 is the x-coordinate. B. The point (0, 5) is on the y-axis. C. The horizontal distance between the point located at (3, 7) and the point located at (6, 7) is 3 units. D. In the ordered pair (9, 7), 7 is the x-coordinate. 8 / 13
A statement which is false include the following: D. In the ordered pair (9, 7), 7 is the x-coordinate.
What is an ordered pair?In Mathematics, an ordered pair is a pair of two (2) elements that are commonly written in a fixed order within parentheses as (x, y), which represents the x-coordinate and the y-coordinate on the coordinate plane of any graph such as the following:
Ordered pair (3, 7).Ordered pair (9, 7).How to calculate the distance on coordinates?Mathematically, the distance between two (2) points that are on a coordinate plane can be calculated by using this formula:
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Distance = √[(6 - 3)² + (7 - 7)²]
Distance = √[3² + 0²]
Distance = √9
Distance = 3 units.
In conclusion, in the ordered pair (9, 7), 9 is the x-coordinate while 7 is the y-coordinate.
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Please help :(
(8^x/5) (8^x/4)=8^4
The value of x in (8^x/5) (8^x/4)=8^4 is 80/9
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.
Given;
The equation;(8^x/5) (8^x/4)=8^4
LHS=(8^x/5) (8^x/4)
=(8^x/5) (8^x/4)
=8^(x/5+x/4)
=8^((4x+5x)/20)
=8^(9x/20)
Now, by comparing LHS to RHS
We will get;
9x/20=4
9x=80
x=80/9
Therefore the answer of the equation will be 80/9
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Identify the simplest polynomial function having integer coefficients with the given zeros.
4i, 3, −1
The simplest polynomial function having integer coefficients with the given zeros is: x⁴ -2x³ + 14x² - 32x - 48
How to solve for the polynomialThe polynomial is of degree 4
We have the values as 4i, 3 , -1
Hence we would have the following in brackets
for 4i = (x - 4i) (x + 4i)
for 3 = (x - 3)
for - 1 = (x + 1)
We would have to multiply these
(x - 4i) (x + 4i) (x - 3) (x + 1)
f(x) = x² + 4ix - 4ix (-4i)² (x² + x - 3x - 3)
f(x) = (x² + 16)(x² - 2x - 3)
This can also be expanded to standard form if you wish
x⁴ - 2x³ - 3x² + 16x² - 32x - 48
properly arrange
x⁴ -2x³ + 14x² - 32x - 48
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where A is a real integer and A ≠ 0.
f(x) = A(x2 + 16)(x - 3)(x + 1)
The value of Kensington's car decreases in Value according to the exponential decay function
V = Pe-0. 12t , where Vis the current value of the vehicle, t is the number of years
Kensington has owned the car and P is the purchase price of the car, $20,000. To the
nearest dollar, what will be the value of Kensington's car in 8 years?
If value of Kensington's car decreases in Value according to the exponential decay function "V = Pe^(-0. 12t)" , then value of Kensington car after 8 years is = $7658 .
The value of the Kensington car is decreasing according to the function ;
the exponential decay function is : V = Pe^(-0. 12t) ;
the purchase Price(P) of the car is = $20000 ;
we have to find the value of Kensington's car in 8 years ;
So , we substitute the value of P = 20000 and t = 8 years in the exponential decay function ,
we get ;
V = 20000 × e^(-0. 12 × 8)
V = 20000 × e^(-0.96)
V = 20000/e^(0.96)
Simplifying further ,
V = 7657.8577 ,
V ≈ $7658 .
Therefore , the value of the car after 8 years is $7658 .
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What is the domain of f(x)=^3radx+2-2
The domain of the function is the set of all real numbers
How to determine the domain of the functionFrom the question, we have the following parameters that can be used in our computation:
f(x)=^3radx+2-2
Express properly
So, we have the following representation
f(x) = ∛(x + 2) - 2
The above function is a cubic function
A cubic function has no restriction on its input value
This implies that the domain is the set of all real numbers
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Determine if the given point is a solution of the system of inequalities.
Help please.
The inequality equations is
a) The point ( -9 , 4 ) lies on the inequality relation
b) The point ( 6 , -2 ) lies on the inequality relation
c) The point ( 0 , -4 ) does not lie on the relation
What is an Inequality Equation?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.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
a)
Now , let the first point be represented as P ( -9 , 4 )
The shaded region is below 4 in the y axis and less than -4 in the x axis
So , the point ( -9 , 4 ) does lies on the inequality equation graph
b)
Now , let the first point be represented as Q ( 6 , -2 )
The shaded region is below -8 in the y axis and less than 8 and more than 4 in the x axis
So , the point ( 6 , -2 ) does lies on the inequality equation graph
c)
Now , let the first point be represented as R ( 0 , -4 )
The shaded region is above -8 in the y axis and more than -4 in the x axis and less than -1
So , the point ( 0 , -4 ) does not lie on the inequality equation graph
Hence , the inequality equations is solved
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a triangle has one side that measures 1 feet and another side that measures 20 inches. wich are possible side lengths of the third side
The possible side length of the third side is 16 inches
How to determine the length of the sideIt is important to note that the Pythagorean theorem states that the square of the hypotenuse side is the sum of the square of the other two sides, they are the opposite and adjacent sides.
This is represented as;
a² = b² + c²
Given that;
a is the length of the hypotenuseb is the opposite sidec is the length of the adjacent sideNote: 1 feet = 12 inches
Substitute the values into the formula, we get;
20² = 12² + c²
Find the squares
400 = 144 + c²
collect like terms
c² = 256
Find the square root
c = 16 inches
Hence, the value is 16 inches
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DE is
midsegment of AABC. Find the value of x
B
X
The length of x in the triangle is 8 units.
How to find the side of a triangle with mid segment?A midsegment is the line segment connecting the midpoints of two sides of a triangle.
The midsegment theorem states that a line segment connecting the midpoints of any two sides of a triangle is parallel to the third side of a triangle and is half of it
Therefore, DE is the mid segment of the triangle ABC. The value of x can be found as follows:
Using the mid segment principle,
BE = EC
BD = DA
Therefore,
x = 8 units
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if you had only 5 and 11 cent stamps. whats the smallest number that would be impossible to make with those stamps.
If you had only 5 and 11 cent stamps, it would be impossible to make a postage stamp for any amount less than 16 cents.
This is because 16 cents is the smallest amount that can be made with those two denominations of stamps.
To prove this, let's start by looking at the possible combinations of 5 and 11 cent stamps that can be used to make a postage stamp:
5 cent stamps x 11 cent stamps
1 x 0 = 0
1 x 1 = 11
2 x 0 = 10
2 x 1 = 16
As you can see, the smallest possible combination of 5 and 11 cent stamps is 2 five cent stamps and 1 eleven cent stamp, which totals 16 cents. Therefore, it is impossible to make a postage stamp for any amount less than 16 cents using only 5 and 11 cent stamps.
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