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brilliants [131]
3 years ago
5

Need help please!!!

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0

Answer:

1. (A)

2.(C)

3. (C)

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1. On a 20 question test, Sarah got 2 questions wrong. What percent of the test does he have correct?
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8x² + 12x + 1 = 0

a = 8 ;  b = 12 ; c = 1

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x² + x = 6

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Solve. Write the solution in interval notation. -2x>-8 and -5x<20.
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Answer:

The interval notation of the solution is (-4 , 4)

Step-by-step explanation:

* Let us explain a very important point in solving inequality

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∵ 2 < 3

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 [ , ] if x equals the end numbers

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