Solve the problem.Determine the period and frequency of oscillation when a pendulum of length 9 feet is released after being displaced 2 radians. Round constants to 8 decimal places, if necessary.
A. Period = 2?
sec, frequency = 
cycles per sec
B. Period = 2?
sec, frequency = 
cycles per sec
C. Period = 9? sec, frequency = 
cycles per sec
D. Period = 
sec, frequency = 
cycles per sec
Answer: A
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Provide an appropriate response.What form do planes perpendicular to the y-axis have in spherical coordinates?
A. ? = a sin ? sin ? B. ? = a csc ? C. ? = a csc ? csc ? D. ? = a csc ?
Bernie invested a sum of money 5 year(s) ago in a savings account, which has since paid interest at the rate of 6% / year compounded quarterly. His investment is now worth $22,927.66. How much did he originally invest? Round your answer to the nearest cent.
?
$__________
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation and simplify.
- 
A. 11
B. 
C. 
D. 
Solve the problem.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = -7x2, but which has a maximum of 7 at x = 5.
A. f(x) = -7(x + 5)2 + 7 B. f(x) = 7(x - 5)2 + 7 C. f(x) = -7(x - 5)2 + 7 D. f(x) = -7(x - 5)2 - 7