Solve the problem.A ball dropped from the top of a building has a height of s = 576 - 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. 12 sec, -96 m/sec
B. 6 sec, 192 m/sec
C. 36 sec, -1152 m/sec
D. 6 sec, -192 m/sec
Answer: D
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Evaluate the integral.
A. e-x7 + C
B. -7e-x8 + C
C. - 
e-x7 + C
D. - 
e-x8 + C
Write expanded notation.90,700
A. 9 ten thousands + 0 thousands + 7 hundreds + 0 tens + 0 ones B. 9 ten thousands + 7 thousands + 0 hundreds + 0 tens + 0 ones C. 9 thousands + 7 hundreds + 0 tens + 0 ones D. 970 ten thousands + 0 tens + 0 ones
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.A is 4 × 4, and B is 4 × 4.
A. 4 × 4; 4 × 4 B. 8 × 4; 8 × 4 C. 4 × 8; 4 × 8 D. 1 × 1; 1 × 1
Provide an appropriate response.Explain why the expression cannot be simplified further.
- 
What will be an ideal response?