Clarence saved 19% of the money he earned. If he earned $90, how much did Clarence save?

answer: the answer is 35%

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

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: