Convert the polar equation to a rectangular equation.r = 9 cos ? + 3 sin ?
A. x2 + y2 = 9x + 3y
B. x2 - y2 = 9x + 3y
C. 9x + 3y = 0
D. x2 + y2 = 3x + 9y
Answer: A
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 5 cos 2t + 4 cos 6t, y = 5 sin 2t - 4 sin 6t, 0 ? t ? ?
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Evaluate: 12(24 + 53)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert the units.19 ft2 = 
yd2
A. 171 B. 228 C. 2.11 D. 1.58
Mathematics
Find the perimeter of the figure.The local park district acquired lands to be used for a new dog park. How many miles of fencing are needed to enclose the dog park?
A. 400 mi B. 380 mi C. 310 mi D. 456 mi
Mathematics