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3 years ago

If the sum of a number and seven is doubled, the result is five less than the number

Mathematics

1 answer:

Iteru [2.4K]3 years ago

4 0

No it is 9 more than the number

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what does the slope of -1 tell you about thr relationship between lengths and widths of rectangles with perimeter 24?

NeX [460]

Using linear function concepts, the slope of -1 means that when one of the length/width is increased by 1, the other is decreased by 1.

<h3>What is a linear function?</h3>

A linear function is modeled by:

$y = mx + b$

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.

b is the y-intercept, which is the value of y when x = 0.

In this problem:

The lengths and the widths are interchangeable, that is, either can be considered as the input or as the output.

The slope of -1 means that when the input in increased by 1, the output is decreased by -1, that is, when one of the length/width is increased by 1, the other is decreased by 1.

You can learn more about linear function concepts at brainly.com/question/24808124

8 0

2 years ago

For what value of M is the equation an identity 4x^2-x+M=3x^2+x+2

Alisiya [41]

Answer:

$m=3x^{3} +2$

Step-by-step explanation:

$4x^{2} -x+m=3x^{2} +x+2$

$4x^{2} +m=3x^{2} +2x+2$

$x^{2} +m=2x+2$

$m=3x^{3} +2$

8 0

3 years ago

I don't get this help ?

Svetlanka [38]

I believe it would be C) 7 1/q

4 0

3 years ago

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Determine the volume of the solid that lies between planes perpendicular to the x-axis at x=0 and x=4. The cross sections perpen

OverLord2011 [107]

Answer:

Volume = 16 unit^3

Step-by-step explanation:

Given:

- Solid lies between planes x = 0 and x = 4.

- The diagonals rum from curves y = sqrt(x) to y = -sqrt(x)

Find:

Determine the Volume bounded.

Solution:

- First we will find the projected area of the solid on the x = 0 plane.

A(x) = 0.5*(diagonal)^2

- Since the diagonal run from y = sqrt(x) to y = -sqrt(x). We have,

A(x) = 0.5*(sqrt(x) + sqrt(x) )^2

A(x) = 0.5*(4x) = 2x

- Using the Area we will integrate int the direction of x from 0 to 4 too get the volume of the solid:

V = integral(A(x)).dx

V = integral(2*x).dx

V = x^2

- Evaluate limits 0 < x < 4:

V= 16 - 0 = 16 unit^3

3 0

3 years ago

What is the slope of a line parallel to y =4x - 6?

BARSIC [14]

Answer:

y = 5x - 6

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers