Answer: D
Explanation:
REFERENCE:
- An Integer is simply a whole number.
- Here, you have square roots. "Perfect squares" are square roots in which the square root of the number is an integer , or whole number.
__________
The perfect squares up to 100 are:
√1= 1 ( 1x1=1)
√4= 2 (2x2=4) and so on
√9= 3
√16= 4
√25= 5
√36= 6
√49= 7
√64= 8
√81= 9
√100= 10
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Now let's look at the answer choices:
A. √3. This is not an integer because the square root of 3 is a long decimal, 1.73205081. That's not a whole number.√3 is not in the list of perfect squares
B. √6. Not an integer. the square root of 6 is 2.44948974278. √6 is not listed in the perfect squares
C. √15 is 3.87298334621, which is not an integer. Not listed in the perfect squares.
D. √36 IS an integer. The square root of 36 is 6, which is a whole number. √36 is also listed in the perfect squares list. I know the square root of 36 is 6 because 6x6=36.
Answer= D
Hope this helps!!