The formula for the volume of a sphere is a power function: V(r) = 4/3 * Pi* r^3

What is the domain of the function in this situation?

All real numbers
r>=0
r<=0
What is the range of the function in this situation?
All real numbers
V(r)>=0
V(r)<=0

Find the distance between (0,5) & (-4,2)

Whuch statements about the diagram are true? select all that apply.

The investigating team suspected that there were differences in the cost of repairing cars in workshop i and workshop ii. the investigating team suspected that the costs raised by workshop i were greater than workshop ii. for that they tested the repair of 15 cars in each workshop to see the cost of repairs.the decision of the right hypothesis to prove the suspicion above is a. h0 : μ1- μ2­ = 0; ha : μ1- μ2­ ≠ 0 b. h0 : μ1- μ2 ≥ 0; ha : μ1- μ2 < 0 c. h0 : μd ≥ 0; ha : μd < 0 with μd = μ2- μ1 d. h0 : μd = 0; ha : μd ≠ 0 with μd = μ2- μ1 e. h0 : μ1- μ2 = 0; ha : μ1- μ2 ≥ 0