ian tosses a bone up in the air for his dog, spot. the height, h, in feet, that spot is above the ground at the time t seconds after she jumps for the bone can be represented by the function, h(t) = -16t + 20t. What is spot's average rate of ascent, in feet per second, from the time she jumps into the air to the time she catches the bone at t = 1/2 second?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Tan198=asin164=? how to solve this? ?