Angle a and angle b are supplementary angles. the ratio of the measure of angle a to the measure of angle b is 5: 4. find the measures of angle a and angle b.
measure of angle a =
degrees.
measure of angle b =
degrees.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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)