The formula for the volume of a cone is v = 1/3pir2h where v=volume, r=radius of the base of the cone, and h=height of the cone. part a. rewrite the formula for the volume of a cone in terms of its radius. part b: a cone has a volume of 25 cubic meters and a height of 5 meters. find the exact value for r, the radius of the cone.

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.