Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = x3, y = 8, x = 0; about x = 5

V ≅ 8980 vu

Step-by-step explanation:

According to the method of cylindrical shells  V=πR²h, where R² (f(x)₂-f(x)₁),  h=dx, f(x)₂=8 and f(x)₁=x³, then

V=π(8-x³)²h ⇒ dV=π(64-16x³+x⁶)dx integrating on both sides

∫dV = π∫(64-16x³+x⁶)dx = 64∫dx-16∫x³dx+∫x⁶dx ⇒

V ≅ 8980 vu

; evaluated to 0 ≤ x ≤ 5

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

step-by-step explanation: