Solve the problem.As part of a physics experiment, Ming drops a baseball from the top of a 315-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. 4.4 sec
B. 19.7 sec
C. 78.8 sec
D. 1.1 sec
Answer: A
Mathematics
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Solve the inequality. Graph the solution set and write the solution set in interval notation.
? 0
A. [-9, 1) ? (1, 5]
B. (-?, -9] ? (1, 5]
C. [-9, 1) ? [5, ?)
D. (-?, -9] ? [5, ?)
Mathematics
Solve the problem. Round money to the nearest cent, if necessary, rates to the nearest whole percent, and time to the nearest month.If $28,750 in interest is paid on a loan at 11.5% for 5 years, what is the principal?
A. $52,272.72 B. $500,000 C. $52,300 D. $50,000
Mathematics
Use synthetic division to decide whether the given number k is a zero of the given polynomial function.k = 2 + i; f(x) = x3 + 5x2 - 12x + 14
A. Yes B. No
Mathematics
Find the quotient.
A. 0 B. 13 C. 1 D. undefined
Mathematics