Which expressions are equivalent to 8 (negative 10 x + 3.5 y minus 7)? Select two options. Negative 80 x + 24.5 y minus 56 Negative 80 x + 28 y minus 56 80 x + 28 y + 56 4 (negative 20 x + 7 y minus 14) Negative 4 (negative 20 x + 7 y minus 14)

Answer:

Negative 80 x + 28 y minus 56

4 (negative 20 x + 7 y minus 14)

Step-by-step explanation:

Given:

$8(-10x+3.5y-7)$

We need to find the equivalent expression for given expression.

Solution:

$8(-10x+3.5y-7)$

First we will apply distributive property for given expression.

$a(x+y) =ax+ay$

So we get;

$8\times-10x+8\times3.5y-8\times7\\\\-80x+28y-56$

Hence first expression equivalent to given expression is $-80x+28y-56$ .

Now again evaluating the expression we get;

We will take 4 as common factor from the expression we get;

$-4\times20x+4\times7y-4\times14\\\\4(-20x+7y-14)$

Hence second expression equivalent to given expression is $4(-20x+7y-14)$ .

3 0

2 years ago

Read 2 more answers

What is the equation for this line

pogonyaev

The equation of the line is $y=\frac{-1}{5} x-\frac{21}{5}$ .

Solution:

The points on the line are (–6, –3) and (4, –5).

$x_{1}=-6, y_{1}=-3, x_{2}=4, y_{2}=-5$

Slope of the line:

$$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$$m=\frac{-5-(-3)}{4-(-6)}$

$$m=\frac{-5+3}{4+6}$

$$m=\frac{-2}{10}$

$$m=\frac{-1}{5}$

Point-slope formula:

$y-y_{1}=m\left(x-x_{1}\right)$

$$y-(-3)=\frac{-1}{5}(x-(-6))$

$$y+3=\frac{-1}{5}(x+6)$

$$y+3=\frac{-1}{5} x-\frac{6}{5}$

Subtract 3 from both sides of the equation.

$$y=\frac{-1}{5} x-\frac{21}{5}$

The equation of the line is $y=\frac{-1}{5} x-\frac{21}{5}$ .

6 0

3 years ago

Can the quotient of two irrational numbers ever be a rational number?

exis [7]

Answer: Yes, it can.

Step-by-step explanation:

4 0

2 years ago

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Rewrite formula for t=n(p-c)

kykrilka [37]

N=t/p-c i think......

4 0

3 years ago