The librarian in a local library wants to know the types of books children at his library prefer to read. He surveys every fourth child entering the library about the types of books they prefer to read. Of the 20 children surveyed, 6 children prefer science fiction, 9 children prefer mystery, and 5 children prefer non-fiction. Identify the population in the situation above. A. every fourth child B. all children entering the library C. all children who like to read D. all children who prefer science fiction books

560

step-by-step explanation:

giggidy

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

hit or miss i guess they never miss huh

step-by-step explanation:

you got a boyfriend i bet he doesnt kiss ya

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