UPLI
Given f(x) = -2x - 12, find x when f(x) = 20.

x = -16

Step-by-step explanation:

Set -2x - 12 = to 20 and solve for x:

Adding 12 to both sides, we get -2x = 32, so that x = -16

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

a

step-by-step explanation: