Convert the rectangular coordinates to polar coordinates. Express the answer in degrees, using the smallest possible positive angle. Round r to the nearest tenth, if necessary, and round ? to the nearest tenth of a degree.(12, 16)
A. (28, 36.9°)
B. (20, 48.6°)
C. (20, 53.1°)
D. (20, 36.9°)
Answer: C
Mathematics
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Solve the equation for solutions in the interval [0°, 360°).tan2 2? = 5
A. ? = 0°, 90°, 180°, 270° B. ? = 33°, 57°, 123°, 147°, 213°, 237°, 303°, 327° C. ? = 0°, 45°, 90°, 135°, 180°, 225°, 270° D. ? = 0°
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Convert the units using unit fractions.21,120 ft = 
mi
A. 105.6 B. 4.5 C. 4 D. 5
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Divide, if possible.-75 ÷ 25
A. 3
B. - 
C. -13
D. -3
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Solve the equation using the Multiplication Property of Equality.-6a = 30
A. {36} B. {-5} C. {-36} D. {1}
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