A rock is dropped off the edge of a cliff and its distance s (in feet) from the top of the cliff after t seconds is (s)=16t^2. Assume the distance from the top of the cliff to the water below is 400 ft. Complete parts a and b below. A) When will the rock strike the water?
B) Make a table of average velocities and approximate the velocity at which the rock strikes the water.

Which is f(5) for the function –2x2 + 2x - 3?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

The angle of elevation from point a to the top of the cliff is 38 degrees. if point a is 80 feet from the base of the cliff , how high is the cliff ?