An arrow is fired into the air with an initial upward velocity of 64 feet per second from the top of a building 80 feet high. The equation that gives the hight of the arrow at any time t is h = 80 +64t-16t^2 Find the times at which the arrow
will be 128 feet in the air?

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

What is the measure of angle tvu shown in the diagram below

For the inequality |c| < |d| to be true, which of the following must be true?