Mathematics, 11.04.2021 05:40 gracieorman4
53. There are n arithmetic means between 40 and 144 such that 4th mean :nth mean is 2:5. The common difference is
(a) 2
(b) 3
(c) 4
(d) 5
Answers: 2
Mathematics, 21.06.2019 19:30, markel19
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
53. There are n arithmetic means between 40 and 144 such that 4th mean :nth mean is 2:5. The common...
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