Karen deposits $375 into a savings account which earns simple interest at a rate of 4% per year. she wants to use the interest to buy a new camera. which price camera could karen buy at the end of 5 years? select all that apply. a. $764 b. $52 c. $38 d. $75 e. $320 f. $249

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)