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3 years ago

2.8x = -9.24A. 12.04B. -0.3030C. -3.3D. 12.04Please helppp

Mathematics

2 answers:

daser333 [38]3 years ago

6 0

The answer of this problem is the letter C. -3.3

Vedmedyk [2.9K]3 years ago

3 0

Answer:

Choice c, 3.3

Step-by-step explanation:

To find out the vaule of X, we have to divided -9.24 by 2.8. We have to divided because when X and next to a number, it means to multiply, and the opposite of multiplication is division. To double check to determine whether or not the answer is correct, simply multiply -3.3 by 2.8 and you will get -9.24.

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Please help In which table does y vary directly with x?

grigory [225]

Answer:

Table D

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Verify each case

Table A

For x=1, y=3

Find the value of k

$k=y/x$ -----> $k=3/1=3$

For x=2, y=9

Find the value of k

$k=y/x$ -----> $k=9/2=4.5$

the values of k are different

therefore

The table A not represent a direct variation

Table B

For x=1, y=-5

Find the value of k

$k=y/x$ -----> $k=-5/1=-5$

For x=2, y=5

Find the value of k

$k=y/x$ -----> $k=5/2=2.5$

the values of k are different

therefore

The table B not represent a direct variation

Table C

For x=1, y=-18

Find the value of k

$k=y/x$ -----> $k=-18/1=-18$

For x=2, y=-9

Find the value of k

$k=y/x$ -----> $k=-9/2=-4.5$

the values of k are different

therefore

The table A not represent a direct variation

Table D

For x=1, y=4

Find the value of k

$k=y/x$ -----> $k=4/1=4$

For x=2, y=8

Find the value of k

$k=y/x$ -----> $k=8/2=4$

For x=3, y=12

Find the value of k

$k=y/x$ -----> $k=12/3=4$

All the values of k are equal

therefore

The table D represent a direct variation or proportional relationship

The linear equation is $y=4x$

6 0

3 years ago

Read 2 more answers

The Pomerantz Family have a small rectangular pond in their flower garden. The pond is 6 feet long and 4 feet wide. If the water

Allisa [31]

Volume of the water= long x width x deep

Data:
long=6 ft
width=4 ft
deep=2 ft

volume of the water: =6 ft * 4 ft * 2 ft=48 ft³

answer: 48 ft³ is the volume of the water.

7 0

3 years ago

What is the equation of the line passing through the point (4, 5) that is parallel to the line with the equation

Reptile [31]

Answer:

y=2x-3

Step-by-step explanation:

1. find the slope

6x-3y=21

-3y=-6x+21 divide both sides by -3

y=2x-7

slope is 2

2.y-5=2(x-4)

y-5=2x-8

y=2x-8+5

y=2x-3

PARALLEL lines have the same slope

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2 years ago

suppose that unit price p in dollars for a quantity demanded X of a certain product of a company is given by p=-0.08+620 (0 <

77julia77 [94]

I am sorry, I would love to help but I am not sure. Good luck anyways. :(

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3 years ago

X>0 and 2x^2+3x-2=0 what is the value of x

vladimir2022 [97]

Step-by-step explanation:

2x²+3x-2=0

(2x-1)(x+2)

x+2=0

x=-2 (no, because x must be >0)

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2x=1

x=½ (yes, because x>0)

3 0

2 years ago

2.8x = -9.24A. 12.04B. -0.3030C. -3.3D. 12.04Please helppp​

2.8x = -9.24A. 12.04B. -0.3030C. -3.3D. 12.04Please helppp