According to the tree diagram below, what is the probability that someone
buys a book that is paperback and nonfiction?
buys fiction
0.45
buys
hardcover
0.35
0.55
buys nonfiction
buys fiction
0.45
buys
paperback
0.65
0.55
buys nonfiction
o a. 0.3575
ob. 0.1575
o c. 0.2925
o d. 0.1925

answer: -1

step-by-step explanation:

im with everythinglos so yeahhhhh

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt