A boy throws a ball into the air. The equation h = -1672 +28+ + 3 models the path of the ball, where h is the height (in feet) of the ballt seconds after it is thrown. How long is the ball in the air? Round your answer to the nearest tenth of a second.
O a
about 1.9 sec
b
about 0.9 sec
about 3.7 sec
Od
about -0.1 sec

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Based on the situation in part a, the width of a rectangular garden is x feet, and its length is 5 feet more than twice its width. the right side of the equation, g(x) = 2x2 − 13x + 6, can be factored to g(x) = (2x − 1)(x − 6). this function could represent an inner region of the garden from the first equation, such as a vegetable garden with a border around it. the length of this inner garden would be 2x − 1 feet, and the width would be x − 6, which would leave a 3-foot border around the garden. part d what is the value of g(8) for the function g(x) in part c? what does this value mean in the context of the situation you described in part c?

On every three hamburgers that mcdonald’s make they use 9 pickles how many pickles would they use on 99 burgers