Question

Which of the following accurately comapares 3√8 and √82?

a. √82is slightly more than 9,so√82 is less than 3 √8.
b. √82 is slightly less than 9, so √82 is less than 3 √8.
c. √82 is slightly more than 9, so √82 is greater than 3 √8.
d. √82 is slightly less than 9, so √82 is greater than 3 √8.

Answer 1

The answer is C. We know that the square root of 81 is about 9 so the square root of 82 would be slightly greater than 9. The cube root of 8 is 2 because 2*2*2 is 8. 9 is greater than 2 so the square root of 8 is greater than the cube root of 8.