How much metal is needed to create a trash can with a height of 4 feet and a base radius of 1 foot? find the surface area of the cylinder

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?