Find the perimeter of the shape. assume all intersections are right angles. a) 8.5 b) 10 + 3 √2 c) 13 d) 13 + 2 √3 e) 15

A). 8.5

Step-by-step explanation:

just count how many squares there are and then how many half rectangles there

since there are 7 squares and 3 half

2 halfs make one whole

so add that making 8 squares and the other half makes 0.5

once u add that you get 8.5

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