Question

Which of the following square roots would not be between 7 and 8

Answer 1

Answer:

C

Step-by-step explanation: When you square something you multiply it by itself, and 7*7 is 49. 45 is lower than 49, so it would be impossible.

Answer 2

Answer:

C, √45

Step-by-step explanation:

First, we can use process of elimination to get rid of A and D, since we know we're looking for a range, and only the highest or the lowest number is going to be outside of that range.

Now we simply have to run the remaining answers through our calculators.  √62 is 7.87 and √45 is 6.71.  Since 7.87 is between 7 and 8 and 6.71 is not, C must be our answer.