Answer: D
Step-by-step explanation:
<u>REFERENCE:</u>
- 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.
__________
<u>The perfect squares up to 100 are: </u>
<em>√1= 1 ( 1x1=1)</em>
<em>√4= 2 (2x2=4) and so on</em>
<em>√9= 3</em>
<em>√16= 4</em>
<em>√25= 5</em>
<em>√36= 6</em>
<em>√49= 7</em>
<em>√64= 8</em>
<em>√81= 9</em>
<em>√100= 10 </em>
<u>____________</u>
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!!
