A ballroom has a square dance floor. The area of the floor is 400 square feet. Of the length of each side of the square increased by one foot, would its area be a rational number? Explain.

It is given in the question that

A ballroom has a square dance floor. The area of the floor is 400 square feet.

And the formula of the area of the square sides square.

So we will get

Taking square root on both sides,

And on increasing the side length by one foot, we will get the side length of 21 feet.

And it is not a perfect square.

And the area is

And 441 is a perfect square and a rational number.

Therefore true statements are A and E.

Step-by-step explanation:

i think it would be 42cm

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.