Write an equation in standard form for the circle shown. A) (x + 3)2 + (y – 1)2 = 7 B) (x - 3)2 + (y + 1)2 = 7 C) (x + 3)2 + (y – 1)2 = 49 D) (x - 3)2 + (y + 1)2 = 49

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?