A water balloon is catapulted into the air so that its height h, in meters after t seconds is h(t) = -4t2 + 16t + 2. What is the height of the balloon after 1 second?
... Feet

What is the maximum height of the balloon?
... Feet

Is the power produced directly proportional to the wind speed, give reasons for your answer?

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.

Grading scale 1 has the following weights- (tests- 50% quiz- 25% homework- 15% final exam- 10%). calculate your final average if your performance in the class is as follows-test grades- {88, 84, 90, 75, 70, 81); quiz grades- {88, 67, 90, 90, 45, 99, 76, 98, 100}; homework- 90; final exam- 75