3 years ago

Which equations are true for x = –2 and x = 2? Check all that apply.

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

3 0

Hi Brainiac

x² - 4 = 0

Add 4 to both sides

x² - 4 + 4 = 0 + 4

x² = 4

Now take the square root

x= +/-√4

x= 2 or x= -2

The answer is A

I hope that's help :)

You might be interested in

If a man goes to a cafe he wants to buy a wrap with the price of 8.80 dollars he gives the cafe lady 10 dollars how much change

Tomtit [17]

It would be $1.20
8.80 + 1.20 = 10

3 0

2 years ago

If side b is 12 and side c is 31. Round your answer to the nearest hundredth.

Marrrta [24]

Answer:

i think you mean area so 31?

Step-by-step explanation:

i need more stuff to answer that

6 0

3 years ago

A cylindrical can of cocoa has the dimensions shown at the right.

IRINA_888 [86]

Answer:

What are the dementions? 9 and 2?

That would be 9*3.14*4 = 133.04

~ 133.04 units cubed

Step-by-step explanation:

8 0

2 years ago

Shelia mixed 3 ounces of blue paint with 2 ounces of yellow paint. She decided to create 20 ounces of the same mixture. How many

zimovet [89]

Yellow:blue is a ratio of 2:3, meaning that 2/5 of the desired mixture is yellow. From this, you need to find how much yellow is necessary for 20 ounces. Well, 2/5 of the 20 ounces will be yellow paint, while the other 3/5 will be blue. So she will need 8 ounces of yellow paint to get 20 ounces of the desired mixture. Hope this helps! :)

6 0

3 years ago

Read 2 more answers

Sandy works at a clothing store. She makes $7 per hour plus earns 10% commission on her sales. She worked 72 hours over the last

MArishka [77]

7(72) + 0.10(2574) = 504 + 257.40 = 761.40 <== this is how much she will earn. Your gonna have to pick the answer choice that is the closest since no answer choices were given.

3 0

3 years ago