Use a graphing calculator to convert from rectangular to polar coordinates. Express the answer in radians, using the smallest possible positive angle.(-2, -4) Round r to hundredths and ? to hundredths of radians.
A. (4.47, 1.11)
B. (4.47, - 4.25)
C. (4.47, - 1.11)
D. (4.47, 4.25)
Answer: D
Mathematics
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Graph the curve whose parametric representation is given. x = 9 cos t , y = -4 sin t, 0 ? t ? 4?
A. 
B. 
C. 
D. 
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Solve the problem.The shape of a barbecue pit is like a parallelogram with height of 50 in and a base of 32 in. It costs 
per ft2 to fill the pit with charcoals. How is the total cost?
A. $12.22 B. $48.89 C. $1760 D. $146.67
Mathematics
Divide and simplify.
÷ 
A. 
B. 1
C. 
D. - 
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Solve the problem.The following data represents the amount of money Tom is saving each month since he graduated from college. 
Using the line of best fit for the data set, predict the amount he will save in the 24th month after graduating from college.
Fill in the blank(s) with the appropriate word(s).
Mathematics