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gregori [183]
3 years ago
9

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 :)

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Which graph represents the inequality y>1-3x
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5 0
3 years ago
On a car trip, Ben drove 65 miles more than half the number of miles Steve drove. Together they drove 500 miles. How many miles
tatyana61 [14]

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210 miles

Step-by-step explanation:

Let's represent it mathematically.

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It is also said that together, they drove 500 miles, we represent it with.

B + S = 500

Now, we solve simultaneously.

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2B = 130 + S.

Rearranging, we have

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We substitute this value of S, in the second equation. So we have.

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Therefore, Ben drove 210 miles.

Kindly vote Brainliest.

7 0
3 years ago
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