3 years ago

Please help quick! It is due in 20 min! Please help!

Mathematics

1 answer:

Korvikt [17]3 years ago

3 0

Answer:

Step-by-step explanation:

1. (a + b) (a - b)

2. 2

3. 4.5 or 4 $\frac{1}{2}$ or $\frac{9}{2}$ or if u wanna round up then 5

hope this helps :)

You might be interested in

Which intervals show f(x) increasing? Choose two options.

k0ka [10]

Where are the options?

3 0

3 years ago

What is the value of X

xxMikexx [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

(6 x 10 to the power of -1) - (5 x 10 to the power of -3)

IgorC [24]

Answer:

0.595.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Use the given equation to find the number <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20x%20-%2019.7%20%3D%20

ziro4ka [17]

Answer:

x = 31.2

Step-by-step explanation:

$\frac{1}{2}$ x - 19.7 = -4.1

$\frac{1}{2}$ x = 15.6 --- add 19.7 to both sides to get rid of -19.7

x = 31.2 --- multiply both sides by 2 to get rid of $\frac{1}{2}$

7 0

3 years ago

How can you solve y=-2x+20 by substitution?

levacccp [35]

Answer:

subtract from both sides and then multiplying both sides

Step-by-step explanation:

how can you solve y = -2x + 25 by subtraction

8 0

3 years ago