Solve the problem.The position of a weight attached to a spring is s(t) = -6 cos 12?t inches after t seconds. What is the maximum height that the weight reaches above the equilibrium position and when does it first reach the maximum height?
A. The maximum height of 6 inches is first reached after 0.08 seconds.
B. The maximum height of 12 inches is first reached after 6 seconds.
C. The maximum height of 6 inches is first reached after 6 seconds.
D. The maximum height of 12 inches is first reached after 3 seconds.
Answer: A
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Solve using the principle of zero products.Given that f(x) = 9x(5x + 25), find all values of a for which f(a) = 0.
A. 0, 
B. 0, 5
C. 0, - 
D. 0, -5
Which of the following statements concerning marketable securities is correct?
A. Marketable securities are extremely liquid investments. B. Marketable securities generally are long-term investments. C. Marketable securities provide higher yields than the firm's other investments. D. The primary purpose for holding marketable securities is to support long-term operations. E. Marketable securities are held by a firm that normally has cash deficiencies.
Solve the problem.Solve the formula V = 
?r2h + 
?hrR + 
?hR2 for r.
A. r = 
B. r = 
C. r = ±
D. r = 
Identify the intercepts.
A. (-6, 0), (0, 6) B. (-3, 0), (0, -6) C. (-3, 0), (0, 6) D. (3, 0), (0, 6)