Write a rational function that can be used to model the race, where the independent variable represents the average speed in Km/hour and the dependent variable represents the time in hours it takes to complete the race. What type of variation function is it?

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the true ones are a b and d