Paula drops a pebble into the ocean from a 120ft high cliff. Use the formula t=h‾√4 to find how many seconds it takes for the pebble to reach the ocean. Round your answer to the nearest tenth of a second.

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.