Solve the problem.If an object is thrown straight upward from the ground with an initial speed of 112 feet per second, then its height, h, in feet after t seconds is given by the equation h(t) = -16t2 + 112t. Find the instantaneous speed of the object at t = 6.
A. -464 ft/sec
B. 16 ft/sec
C. 112 ft/sec
D. -80 ft/sec
Answer: D
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Perform the operation.3.67(1.97 + 59.6 - 5.54)
A. 246.2937 B. 654.13248 C. 61.2899 D. 205.6301
Solve the problem.As part of a physics experiment, Ming drops a baseball from the top of a 330-foot building. To the nearest tenth of a second, for how many seconds will the baseball fall? (Hint: Use the formula h = 16t2, which gives the distance h, in feet, that a free-falling object travels in t seconds.)
A. 1.1 sec B. 20.6 sec C. 4.5 sec D. 82.5 sec
The general term of a sequence is given. Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.an = 5n2
A. geometric, r = 5
B. arithmetic, d = 5
C. geometric, r = 
D. neither
Multiply. Assume that all variables represent natural numbers.(x3n - y)(x2n- 6y2n)
A. x5n- 6x3ny - x2ny2n + 6y2n+1 B. x5n- 7x3ny2n + 6y2n+1 C. x5n- 6x3ny2n - x2ny + 6y2n D. x5n- 6x3ny2n - x2ny + 6y2n+1