Question

Which statement explains why 49 is a perfect square?

A. 49 can be multiplied by 49.
B. 49 is equal to 7 plus 7.
C. 49 is between 36 and 64.
D. 49 is equal to 7 times 7.

Answer 1

Option (d) is correct.

49 is equal to 7 times 7.

Explanation:

Given : Statement "why 49 is a perfect square."

We have to choose a correct statement out of given options that defines correctly why 49 is a perfect square.

Perfect square is a obtained when a number is multiplied to itself.

that is
`y* y=y^2`, then , y² is a perfect square.

For 49, we can write 49 as
`7* 7`,

Thus, 49 is a perfect square.

Thus, 49 is equal to 7 times 7.

Answer 2

ANSWER


`\boxed {D. \: \: 49 \: is \: \: equal \: \: to \: \: 7 \: \: times \: \: 7.}`


EXPLANATION



A perfect square is obtained by multiplying a number by itself.


That is ,


`{x}^(2) = x * x`


The given number is 49.

This number can be rewritten as,


`49 = {7}^(2) = 7 * 7`


Hence the correct answer is D.