1) if y varies inversely as x, and y=3 as x = -2, find y for the x value of -1.
2) if y varies directly as x, and y=15 as x=-3, find y for the x value of 4

77

step-by-step explanation:

i think that you should ask google for the answer to that problem because if we don't know it google does

(23*2)-12=x     x=34

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560