The volume, v, of the right circular cone with radius r and height h, shown below, can be found using the formula v = one-thirdpi r2h. a cone-shaped paper cup has a volume of 142 cubic centimeters and a height of 8.5 centimeters. what is the radius, to the nearest centimeter, of the paper cup?

Np4=12np2 with clear explanation.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?

What is the factor form of x^2-9x+14