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 112 ft/sec, and the gorge is 192 ft deep, during what interval can the flare be seen? 
A. 3 < t < 4
B. 0 < t < 3
C. 9 < t < 10
D. 6 < t < 7
Answer: A
Mathematics
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A. -1, 
, 1
B. 
, 1
C. -1, 1
D. -1, - 
, 1
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Perform the division.
A. 11x2 + 42 B. x - 42 C. 11x + 2 D. 11x - 2
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Find the absolute value.
A. 
B. 19
C. 0
D. -19
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Solve the problem.Find the volume V and surface area S of a sphere of radius 10 centimeters. Express the answer in terms of ?.
A. V = 1000? cm3; S = 100? cm2
B. V = 4000? cm3; S = 25? cm2
C. V = 
? cm3; S = 400? cm2
D. V = 
? cm3; S = 
? cm2
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