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2 years ago

What expressions is equivalent to −2(x−5)?

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

6 0

Answer:

-2x + 10

Step-by-step explanation:

Distribute -2 to x - 5 to simplify the expression. So we get: -2(x - 5) = -2x + 10.

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How to write 8% as ratio in simplest form

dusya [7]

Answer:8:100

Step-by-step explanation:

Because the 8% is out of 100

3 0

3 years ago

Which equation represents the function represented by the table? 17 POINTS!!!

dybincka [34]

Answer:

f(x) = -x -1

Step-by-step explanation:

You can make the correct choice by seeing which equation works for the first line of the table.

f(-1) = -(-1) -1 = 0 . . . . . the first equation works

f(-1) = -(-1) +1 = 2 . . . not zero

f(-1) = -1 -1 = -2 . . . not zero

f(-1) = 1 -(-1) = 2 . . . not zero (same as second equation)

6 0

3 years ago

A graph has a constant of proportionality of 2.54. Let y represent centimeters and x represent inches. What is the unit rate of

Helga [31]

Answer: 2.54 is the rate of the given equation.

Step-by-step explanation:

Let x is the independent variable and y is the dependent variable.

Since, By the definition of proportionality,

y = k x

Where k is the constant of proportionality.

And, Here k = 2.54

Thus, the equation of line is,

y = 2.54 x

since, rate of the equation is the slope of the line.

And, the general equation of line

y = m x +c

Where, m is the slope of the line.

By comparing the equation of line y = 2.54 x with this.

The slope of the line = 2.54

Therefore, 2.54 is the rate of the given equation.

3 0

3 years ago

Which of these describes the equation –18x + 9y = –416?

Minchanka [31]

Answer:

We conclude the equation is linear because it can be rewritten in the form $y = mx + b$ .

Hence, option D is correct.

Step-by-step explanation:

The slope-intercept form of the line or linear equation

$y = mx+b$

where

$m$ is the slope

$b$ is the y-intercept

<u>Important Tip:</u>

The graph of a linear equation is always a straight line.

Convert the given equation in the slope-intercept form

$18x + 9y = -416$

subtract 18x from both sides

$18x+9y-18x = - 18x-416$

simplify

$9y = -18x - 416$

divide both sides by 9

$y=-2x-\frac{416}{9}$

Now, comparing the equation $y=-2x-\frac{416}{9}$ with a slop-intercept form of linear equation

The slope m = -2

The y-intercept b = -416/9

Therefore, we conclude the equation is linear because it can be rewritten in the form $y = mx + b$ .

From the attached graph, is also clear that the graph of the equation $y=-2x-\frac{416}{9}$ is a straight line.

Hence, option D is correct.

3 0

3 years ago

Read 2 more answers

Plz help me with this Im timed will mark as brainliest

viktelen [127]

Well what i got was 79.3 by finding the average by adding it all together then divided it by how many numbers

4 0

3 years ago

Read 2 more answers