Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = -4 sin ?
A. C(4, ?), radius = 4 B. C(4, 3?/2), radius = 4 C. C(2, 3?/2), radius = 2 D. C(2, ?/2), radius = 2
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find sin ?.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by the square root property.(2x + 4)2 = 36
A. {-5, 1} B. {1, 5} C. {0, 1} D. {-20, 20}
Mathematics
Change to the equivalent decimal.7
A. 1.75 B. 2.625 C. 10.333 D. 7.75
Mathematics