Jared took a math test. He got 90%. There were 30 problems. How many did he get right?

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 is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x