What is the product of the rational expression

Multiplying two fractions is very easy: you need to multiply one numerator with the other, and one denominator with the other.

So, in your case, the answer is

Both expressions at numerator and denominator are in the form . This is a known case, where the result is the difference of the squares:

So, the answer is

560

step-by-step explanation:

giggidy

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