Will give brainliest if you answer no 1

Asphere has a diameter of 10 in. what is the volume of the sphere?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)