Mathematics, 09.12.2021 19:30 1230bering
power companies severely trim trees growing near their line to avoid power failures due to falling limbs in storms. applying a chemical to show the growth of the trees. suppose that one such chemical would kill 20% of sycamore trees. the power company tests the chemical on 250 sycamores. consider these an SRS from the population of all sycamore trees. use a z-score to calculate the probability that at least 24% of the sample are killed. the probability of this is.
Answers: 3
Mathematics, 21.06.2019 13:50, miacervenka
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)
Answers: 3
Mathematics, 21.06.2019 19:00, lex112592
Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?
Answers: 2
power companies severely trim trees growing near their line to avoid power failures due to falling l...
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