Use a graphing utility to graph the curve defined by the given parametric equations.x = 3 cos t, y = 2 sin t; 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.The time T in seconds for a pendulum of length L feet to make one swing is given by T = 2?
. How long is a pendulum (to nearest hundredth) if it makes one swing in 1.3 seconds? Use 3.14 for ?.
A. 1.59 ft B. 62.53 ft C. 15.63 ft D. 9.96 ft
Simplify the expression. Assume that all variables are positive and write your answer in radical notation.
? 
A. 
B. 
C. 
D. 
Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 20, percent = 4
A. whole = 50 B. whole = 500 C. whole = 250 D. whole = 20
Solve the problem.Lin purchased shares of a stock for $9.57 per share forty years ago. Today the stock is worth $527.36 per share. Express to the nearest percent the ratio of what the stock is worth now to what the stock was worth when she purchased it.
A. 5511% B. 556% C. 1% D. 55%