The radius of a sphere is 3 inches. Which represents the volume of the sphere?
0 12 cubic inches
O 36cubic inches
O 64 cubic inches
O 81cubic inches

What is the difference between regular convex and concave polygons

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)