Solve the problem.As part of a physics experiment, Ming drops a baseball from the top of a 345-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. 1.2 sec
B. 21.6 sec
C. 86.3 sec
D. 4.6 sec
Answer: D
Mathematics
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Write the polynomial f(x) =x 4 + 6x 2 – 27 as the product of factors that are irreducible over the rationals.
a. 
b. 
c. 
d. 
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Convert the angle into degree, minute, second form. Round the answer to the nearest second.158.34°
A. 158°21'24'' B. 158°18'34'' C. 158°20'34'' D. 158°20'24''
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Find the product.-7x3(10x + 12)
A. -70x - 84 B. -70x4 + 12 C. -70x4 - 84x3 D. -154x3
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Graph the rational function.
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Note that the numerator and denominator of the fraction share a common factor.
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A. ?
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B. ?
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C. ?
D. ?
E. ?
Mathematics