Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 160 ft/sec, and the gorge is 336 ft deep, during what interval can the flare be seen? 

A. 9 < t < 13 (seconds)
B. 0 < t < 3 (seconds)
C. 6 < t < 10 (seconds)
D. 3 < t < 7 (seconds)


Answer: D

Mathematics

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Solve the problem.Refer to the following preference schedule. If the plurality method is used to determine the winner, is Fairness Criterion 2 satisfied?

A. Yes B. No

Mathematics

E = 30 V, R1 = 15 Kê, R2 = 27 Kê, and RL = 22 Kê. Find VOC and RTH.


a. VOC = 19.3 V, RTH = 9.6 Kê
b. VOC = 19.3 V, RTH = 27 Kê
c. VOC = 19.3 V, RTH = 22 Kê
d. VOC = 30.0 V, RTH = 23.1 Kê
e. VOC = 30.0 V, RTH = 9.6 Kê

Mathematics

Solve. Write the answer as a mixed number in simplest form.Keith Wood has 24 feet of rope. He cuts off a 10-foot length and then a 5-foot length. If he now needs a 9-foot piece of rope, will the remaining piece do?

A. Yes, there is still  of a foot left.
B. No, he will be  of a foot short.

Mathematics

Solve the problem.Is the solution to yn = .5yn-1 + 8, y0 = 48 monotonic or oscillating?

Fill in the blank(s) with the appropriate word(s).

Mathematics