Prove whether or not 169 is a perfect square.

13

Step-by-step explanation:

Proving whether a number is or isn't a perfect square can seem complicated.

In this case, we are going to set up an equation:

n * n = 169

n² = 169

n = .

Breaking the radical down:

(factors of 169): 1, 13, 13, 169

Since there are two 13's, and that when multiplied by together equal 169, we can see that the square root of 169 is 13. Also note that most people memorize this square root :D.

Thusly, we know that is a perfect square. (The square root is 13.)

Hope this helps!

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.