Mathematics, 18.05.2021 01:20 mxwtwo
Alice was sitting on a dock looking at a lake. She picked up a stone and threw it in the air and out toward the lake. It seemed like it was in the air for a long time. The equation that can be used to model the height of the stone (in feet) as it relates to the time in the air (in seconds) is given by h(t)=5+50t-16t^2. In order to solve for how long the stone was in the air, Alice will need to use the quadratic equation. How long was the stone in the air? Round to the nearest hundredth if not an exact answer.
Answers: 1
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An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.
Answers: 2
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