The relationship between the radius, r, of a sphere and its volume, V, is r = (3V/4π )^1/3 . What is the radius of a sphere that has a volume of 36π cubic units? and

The relationship between the radius, r, of a sphere and its surface area, A, is r = ( A/4π )^1/2. What is the radius of a sphere that has a surface area of 64π square units?

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered