Question 39 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

Question 39 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

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39. Saying that $4<\sqrt{x}<9$ is equivalent to saying what about $x$ ?

A. 0 < x < 5

B. 0 < x < 65

C. 2 < x < 3

D. 4 < x < 9

E. 16 < x < 81

Answer and Explanation

Your Answer is

Correct Answer is E

Explanation

Squaring the original inequality, 16