A tank in an aquarium holds 9000 gallons of water and loses 40 gallons of water per minute after springing a leak. Let A = f(t) be a function that gives the amount
of water A in the tank t minutes after the tank starts leaking. Find the formula for
f(t).

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)

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Which equation represents h for right triangle abc