Question

what is the exact value of the square root of 28 over 9 square root of 16

Answer 1

Do you mean
\[\frac{\sqrt{28}}{9}\sqrt{16}\]
Or do you mean
\[\frac{\sqrt{28}}{9\sqrt{16}}\]

Answer 2

sqrt 28 = sqrt4 * sqrt 7 = 2sqrt7

sqrt 16 = 4

so your expression 2sqrt7 = sqrt7 / 18
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9* 4