Solve the problem.A rock falls from a tower that is 384 feet high. As it is falling, its height is given by the formula  How many seconds will it take for the rock to hit the ground  Round your answer to the nearest tenth, if necessary.

A. 19.6 sec
B. 9216 sec
C. 19.2 sec
D. 4.9 sec


Answer: D

Mathematics

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Provide an appropriate response.Given that f(x) = x3 and g(x) = 3x, rank the following in order from largest to smallest : f(2), g(2), f'(2), g'(2)

A. f'(2), g'(2), g(2), f(2) B. f'(2), g(2), g'(2), f(2) C. g'(2), f'(2), f(2), g(2) D. g'(2), f'(2), g(2), f(2)

Mathematics

Decide whether events A and B are overlapping or non-overlapping.You roll a red die and a blue die.Event A is that you get a sum of 10.Event B is that you get a six on the red die.

A. Non-overlapping B. Overlapping

Mathematics

Solve the given applied problems involving variation.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 2 amperes when the resistance is 680 ohms. What is the current when the resistance is 354 ohms?

A. 0.26 amperes B. 1 amperes C. 3.8 amperes D. 0.96 amperes

Mathematics

Solve the triangle. 

A. A = 30°, B = 61°, C = 89° B. A = 30°, B = 89°, C = 61° C. A = 61°, B = 89°, C = 30° D. A = 61°, B = 30°, C = 89°

Mathematics