A dolphin jumps out of the water. The quadratic function h(t) = -16t^2 + 20t models the dolphin's height above the water in feet after t seconds. When does the dolphin reach it maximum height out of the water? what is the maximum height? how long is the dolphin out of the water?

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Find the value of x. give reasons to justify your solutions! c ∈ ae

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?