Mathematics, 10.03.2020 00:29 coolestkid2401
Sitting at the edge of a cliff, you throw a stone vertically upward with a velocity of 30 m/s. The height of the stone above the cliff's edge in units of 10 meters can be approximated by
f(t) = 3t − 0.5t2.
(a) From the graph, at what time does the stone reach its highest point? (Round your answer to one decimal place.)
t = s
(b) How high above the cliff does the stone reach? (Round your answer to one decimal place.)
m
(c) When is the stone again at the elevation of the cliff's edge? (Round your answer to one decimal place.)
t = s
(d) You check your watch and observe that the stone hits the ground below the cliff after 7 seconds. How high is the cliff? (Round your answer to one decimal place.)
Answers: 1
Mathematics, 21.06.2019 12:30, lnbrown9018
An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.
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Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?
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