CAN SOMEONE SOLVE BOTH OF THESE PROBLEMS ILL GIVE BRAINLIEST

1) HL=15

2)EF=23

Step-by-step explanation:

(I did the 2nd one first), , HL=21, EF=31

Step-by-step explanation:

FInd the midsegment of a trapezoid by adding the bases and dividing by two

(9x+3+5)/2=4x+7, now solve for x

9x+3+5=8x+14

x=6, so ef is 31

Do the first one the same way;

(2.5(12)+12)/2=HL

42/2=HL, HL=21

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