Joseph leans a 20-foot ladder against a wall so that it forms an angle of 69° with the ground. How high up the wall does the ladder reach? Round your answer to the
nearest hundredth of a foot if necessary.

Which function is represented by the graph

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?