3 years ago

Write the expression in expanded form. (4.2z)(-5y-3)

Mathematics

1 answer:

oee [108]3 years ago

5 0

The answer is -21yz - 12.6z

You might be interested in

How do I find the y intercept in a fraction

Furkat [3]

ANSWER:

Both functions have the same slope

The linear equation does not have a y-intercept

The table and the grahp express an equivalent function

STEP-BY-STEP EXPLANATION:

In order to compare, we must calculate the slope of the table, knowing that the equation in its slope and intercept form is the following:

$\begin{gathered} y=mx+b \\ \text{where m is the slope and b is y-intercept} \end{gathered}$

The formula to calculate the slope is the following:

$m=\frac{y_2-y_1}{x_2-x_1}$

The points are (-6, -9/2) and (4,3), replacing:

$m=\frac{3-(-\frac{9}{2})}{4-(-6)}=\frac{3+\frac{9}{2}}{4+6}=\frac{\frac{15}{2}}{10}=\frac{15}{20}=\frac{3}{4}$

The slope is 3/4

Now, for b

x = 4

y = 3

m = 3/4

replacing:

$\begin{gathered} 3=\frac{3}{4}\cdot4+b \\ b=3-3 \\ b=0 \end{gathered}$

The equation is:

$y=\frac{3}{4}x$

Therefore, the true statements are:

• Both functions have the same slope

• The linear equation does not have a y-intercept

• The table and the grahp express an equivalent function

8 0

1 year ago

How many pounds per cup is shown in the proportional relationship below

Lilit [14]

4 pounds per 20 cups.

3 0

3 years ago

A group of randomly selected members of The Foodies Food Club were asked to pick their favorite type of food. The bar graph belo

zloy xaker [14]

Answer: The answer is B

3 0

3 years ago

Read 2 more answers

If 3 is subtracted from twice a number, the result is 8 less than the number. Write an equation to solve this problem.

lakkis [162]

3 subtracted from twice a number=2x-3
8 less than the number=x-8
2x-3=x-8
x=-5

3 0

3 years ago

What is the solution to the system of equations?

dusya [7]

Answer:

1.x=-4+ y/2 - z/2

2. X=-4-y-z

3. x=y/3-2/3

Step-by-step explanation:

8 0

3 years ago