Do you need
i can you to add decimals and fractions i am fabuloso in most stuff how are you

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)

What number is 7 units left of -15?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer