3. If h(x)=x2-5x + 4, () express h(2a) -h(a) in terms of a,
(ii) find the values of a for which h(a) = 0,
(iii) express h(a?) + h(a) in terms of a.
Given the function g(x) = mx + c and that g(1)

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

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