Answer.
5. B. 4
6. sq. root of 2
7. C. 8
8. B. 13
9. B. 12x12=144
10. C. 11
Explanation.
5. A perfect square is a number with a perfect square root. of the four numbers, 4 is a perfect square.
6. An irrational number is a number that cannot be expressed as the ratio of two integers. The square root of two is an example of this.
7. A square root is a number times itself, but you do not know what number is being multiplied. By testing all the options, we find that 8x8 is indeed 64.
8. A square root is a number times itself, but you do not know what number is being multiplied. By testing all the options, we find that 13x13 is indeed 169.
9. We know that a square root is when a number is multiplied my itself. 12x12 is 144 therefore the square root of 144 is 12.
10. Because the square root of 140 does not have an simple answer, we can estimate. The approximate answer is 11.83 which can round up to 12 if that answer is available, select it. If not, the answer is 11.
Hope this helps, let me know if it’s correct so others can use it.
Good luck.