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Find the number of positive integers \(n\) so that \(4 < \sqrt{n} < 10\)

Guest Apr 14, 2019

+2863

+3

Best Answer

Since \(\sqrt{n}\) can be 5,6,7,8,9.

You sqaure the possible solutions to get 25,36,49,64,81.

These are the ONLY solutions because the problem said "positive integers"

So there are 5 possible solutions

+129852

+1

Very nice, CU !!!!!

CPhill Apr 14, 2019

CalculatorUser · Answer 1 · 2019-04-14T09:31:36

Since \(\sqrt{n}\) can be 5,6,7,8,9.

You sqaure the possible solutions to get 25,36,49,64,81.

These are the ONLY solutions because the problem said "positive integers"

So there are 5 possible solutions

Rudram592 · Answer 2 · 2019-04-14T10:30:22

Thanks CalculatorUser and CPhill!