Solve the problem.A ball dropped from the top of a building has a height of s = 256 - 16t2 meters after t seconds. How long does it take the ball to reach the ground? What is the ball's velocity at the moment of impact?

A. 4 sec, 128 m/sec
B. 8 sec, -64 m/sec
C. 16 sec, -512 m/sec
D. 4 sec, -128 m/sec

Answer: D

Mathematics

Solve the initial value problem. = 1; y "(0) = -3, y '(0) = 4, y(0) = 5

A. y = 5
B. y = x³ - x² + 4x + 5
C. y = x³ + x² + 4
D. y = x³ - x² + 4x + 5

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Mathematics

Write in exponential form.log9 1 = 0

A. 91 = 0 B. 09 = 1 C. 90 = 1 D. 19 = 0

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Mathematics

Multiply.0.257 × 2.9

A. 0.7453 B. 3 C. 3.157 D. 0

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Mathematics

Determine whether or not the function is one-to-one.f(x) = 6x - 4

A. No B. Yes

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Mathematics