PLEASE PLEASE PLEASE HELP Around which line would the following cross-section need to be revolved to create a sphere?
a. x–axis
b. y=x
c. x = 1
d. y = 1

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

What is always true about a positive integer raised to a negative odd power?

During a wright loss challenge your friend goes from 125 pounds to 100 pounds. what was the percent weight loss