Which of the following functions describes the sequence 4,-2,1,- 1/2, 1/4, . . .? A. f(1) = 4, f( n + 1) = -2f(n) for n>1

B. f(1) = 4, f( n + 1) = f(n) - 2 for n>1

C. f(1) = 4, f(n) = 1/2 f(n + 1) for n>1

D. f(1) = 4, f(n) = -1/2 f(n + 1) for n>1

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.