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riadik2000 [5.3K]
3 years ago
7

HELP PLEASE 16 points

Mathematics
1 answer:
Lina20 [59]3 years ago
5 0

Answer: 21

Step-by-step explanation: In these types of problems, you use inverse operations. The inverse operation for multiplying is dividing. 42 divided by 2 is 21.

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\sqrt{9/16} = \sqrt{9} ÷ \sqrt{16} = \frac{3}{4}

\sqrt{9^2} = \sqrt{81} = 9


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