Answer:
27
Step-by-step explanation:
V_cylinder = pi r^2 h
h = 36
V_cylinder = 36 pi r^2
V_Sphere = 4/3 * pi * r^3
But the volumes are given as equal
36pi r^2 = (4/3) pi r^3 divide by pi r^2
36 = 4/3 r Multiply both sides by3/4
36 * 3/4 = r
r = 27
P=(2,-3)
Q=(a,a²-2a-3)
Proof:
y'=(x²-2x-3)'=2x-2
y'(2)=2*2-2=2
18.9
Calculators, haha