The graph shows a proportional relationship. Which equation matches the graph?

Answer:

Step-by-step explanation:

Given the rate at which the elevator travels modeled by the expression;

y = 30x where y is the height, in feet, and x is the number of seconds.

If the observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground, we can calculate the time taken to reach the top floor by substituting y = 900 into the equation and solve for x as shown;

y = 30x

900 = 30x

Rearrange

30x = 900

Divide both sides by 30

30x/30 = 900/30

x = 30

Hence it takes 30seconds for the elevator to reach the top floor

Answer:

C

Step-by-step explanation:

The similarity statement is correct. Because they are similar, AB is equal to EF, so to find x, you do x-2=2.2. Solve that and you get x=0.2

Answer:

My answer came out to -22.

Step-by-step explanation:

Start multiplying from left to right:

Two negatives multiplied are positive:

-2.2·(-2)=4.4

A negative and a positive multiplied equal a negative:

4.4·(-1)=-4.4

-4.4·5=-22

Answer:

1.4, 2, √7

Step-by-step explanation:

√7 = 2.65 (rounded to nearest hundredth)

1.4 is the smallest

2 is next

√7 is the biggest

Hope I helped :)

Please consider Brainliest :)

Answer:

function - is a relation for which each value from the set the first components of the ordered pairs

Answer: y=-4x-31

Step-by-step explanation:

To find a ling that is parallel to the given line and passes through the given point, we need to use the given point. We know that the slope MUST stay the same because parallel lines NEVER touch. All we have to do is plug in the point and find the y-intercept.

-7=-4(-6)+b            [multiply]

-7=24+b                 [subtract both sides by 24]

b=-31

Now, we know that y=-4x-31 is the equation.

Answer:

2 x 2 x 3 x 3

Step-by-step explanation:

Answer:

a composite number is written as a product of all of its prime factors, we have the prime factorization of the number. For example, the number 36 can be written as a product of primes as: 36 = 2² x 3². The expression 2² x 3² is said to be the prime factorization of 36.

Answer:

B: As the average speed increases, the time he takes to get to school decreases.

Step-by-step explanation:

On the graph, it showed that the plotted points are decreasing as the average speed is increasing. Also, I took the test and B was the correct answer.

The equation of the line that goes through the given points is y = -8x + 25.

Given the following points:

To determine the equation of the line that goes through the given points:

First of all, we would determine the slope of this line by using the following formula;

[tex]Slope. \;m = \frac{Change \; in \; y \;axis}{Change \; in \; x \;axis} \\\\Slope. \;m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substituting the points into the formula, we have;

[tex]Slope, \;m = \frac{1 - 9}{3 - 2}\\\\Slope, \;m = \frac{-8}{1}\\\\[/tex]

Slope, m = -8

Now, we can determine the equation of the line by using this formula:

[tex]y-y_1 =m(x-x_1)\\\\y-9=-8(x-2)\\\\y-9=-8x+16\\\\y=-8x+16+9[/tex]

y = -8x + 25

Read more on slope here: https://brainly.com/question/3493733

Answer:

11. ∠9 = 100°

12. ∠6 = 80°

13. ∠8 = 80°

14. ∠2 = 80°

15. ∠5 = 100°

16. ∠11 = 100°

Step-by-step explanation:

Answer:

11. 100°    12. 80°     13. 80°    14. 80°    15. 100°    16. 100°      

Step-by-step explanation:

We know a straight line is 180 degrees and that m∠7 is 100 degrees.

m∠9, m∠5 and m∠11 are 100 degrees

To find m∠6, m∠8, and m∠2 we subtract 100 from 180 and get 80 degrees.

If you fill in all the degrees of the angles, you will notice a zig-zag pattern. That helps when solving these kinds of problems

I hope this helped, please mark Brainliest, thank you!

PL≅YL - Given

∠P≅∠Y - Base Angle Theorem

LA≅AL - Shared Line (sry forgot what it is called)

PLA≅YLA - SAS (Side Angle Side)

hope this helps :)

Answer:

Step-by-step explanation:

Y-5=-2/5(x + 8)

Answer:

-59,049

Step-by-step explanation:

Multiply 9 by itself 5 times

Answer:

2.25 miles

Step-by-step explanation:

If she can walk 3/4 of a mile in 20 minutes you need to multiply 3/4 by 3 because 20 times 3 is 60 and there is 60 minutes in a hour

Answer:

[tex]x = -\frac{1}{7}[/tex]

Step-by-step explanation:

2(5x + 1) - 2x = 2 - 2(3x + 1)

Use the distributive property

10x + 2 - 2x = 2 - 6x -2

Combine like terms

8x + 2 = -6x

Subtract 2 from both sides

8x = -6x - 2

Add 6x to both sides

14x = -2

Divide both sides by 14

x = -2/14 = -1/7

Answer:

d

Step-by-step explanation:

Answer:

She earned $144 in total.

Answer:

h = 42y

Step-by-step explanation:

The number of hats h she can knit varies directly with the amount of yarn (y) in yards she has.

h = ky

Where,

h = the number of hats she can knit

y = amount of yarn she has(yards)

k = constant of people = 42

Eequation to represent the relationship between the number of yards of yarn Paula has and the number of hats she can knit.

h = 42y

Answer:

y=5-9x

Step-by-step explanation:

y is means y=

5 less than means 5-

product of 9 ans x means 9x

so... y=5-9x

Answer:

y = 9x - 5

Step-by-step explanation:

'is' = equal to

'less than' = difference/subtract

'product' = multiply

y = 9x - 5

Answer:

-935160312

Step-by-step explanation:

r = -189

-13 = r/9 + 8

Subtract 8 on both sides

-21 = r/9

Multply 9 on both sides

-189 = r

Answer:

r = -189

Step-by-step explanation:

-13 = r/9 + 8

-13 - 8 = r/9

-21 = r/9

-21 × 9 = r

-189 = r

Answer:

the answer is x = 2

Step-by-step explanation:

2x+2=4+1x

(2x-1x)+2= 4 +(1x-1x)

1x+2=4

1x(2-2)=(4-2

1x=2

2/1=x

x=2

Answer: X=2

I might be wrong

Answer:

14a+9c

Step-by-step explanation:

Answer:

Step-by-step explanatio

-53

The opposite of 53 is -53

Answer:

n=3

Step-by-step explanation:

Answer:

Uhhh... how do I answer this?

Step-by-step explanation:

There is no way for me to SEE where he made an error.