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Elodia [21]
3 years ago
10

Square root of -25 minus square root of -9 plus square root of -81

Mathematics
1 answer:
yulyashka [42]3 years ago
8 0

Answer:

Positive 11

Step-by-step explanation:

square root of -25 = 5

square root of -9 = 3

square root of -81 =9

Therefore

5 - 3 + 9

2 + 9 = 11

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3 years ago
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What is the square root of 8 rounded to the nearest tenth?
frozen [14]

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Here are step-by-step instructions for how to get the square root of 8 to the nearest tenth:

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We calculate the square root of 8 to be:

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Step 2: Reduce

Reduce the tail of the answer above to two numbers after the decimal point:

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Step 3: Round

Round 2.82 so you only have one digit after the decimal point to get the answer:

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To check that the answer is correct, use your calculator to confirm that 2.82 is about 8.

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Step-by-step explanation:

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