Mathematics, 17.04.2021 09:20 keke6361
A stone is launched into the air from a height of 384 feet. The height, h , of the stone, in feet, t seconds after launch is given by the formula h=-16t2+32t+384 . After how long will the stone hit the ground? 12 seconds 6 seconds -4 seconds 4 seconds
Answers: 3
Mathematics, 21.06.2019 19:30, ray2220
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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
Mathematics, 21.06.2019 20:00, cduke1919
The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212
Answers: 1
A stone is launched into the air from a height of 384 feet. The height, h , of the stone, in feet, t...
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