3. Find the volume of a hemisphere with a radius of 17 inches. Round to the nearest tenth​

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)