Find the volume and surface area of the composite figure. give four answer in terms of π.

  V = 99π in³; S = 81π in²

Step-by-step explanation:

Volume is that of a hemisphere of radius 3 in together with that of a cylinder of radius 3 in and height 9 in.

  V = (2/3)πr³ +πr²h = (πr²)(2/3r +h)

  = 9π(2 +9) = 99π . . . . in³

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The area is that of a hemisphere, the side of the cylinder, and the circular bottom of the cylinder.

  S = 2πr² +2πrh +πr² = πr(2r +2h +r)

  S = 3π(6+18 +3) = 81π . . . . in²

step-by-step explanation:

quartic functions has x = –1 and x = –2 as its only two real zeroes:

f(x) = a(x+2)(x+1)   a: real number