Fireworks are set off from a hill 80 feet above the Mississippi. The outer shells will fall after exploding at its maximum height. The firework's height
about the surface of the river is given by the function h(t) = -16t^2 +64t +
80. After how many seconds from launch will the outer shell hit the
surface? *

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

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