Evaluate the indicated function with the given information.Find cos 2x if sin x = 
(in second quadrant).
A. 
B. - 
C. - 
D. 
Answer: B
Mathematics
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Graph each set of numbers.
, 4, 
, -5
A. 
B. 
C. 
D. 
Mathematics
Divide.
A. 0.0177 B. 0.000000177 C. 0.00177 D. 0.177
Mathematics
Evaluate the expression for the given replacement values.x ÷ y for x = 312, y = 0
A. 
B. 312
C. 0
D. undefined
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 - 2x + 1 + y2 + 2y + 1 = 49
A. (h, k) = (1, -1); r = 49 B. (h, k) = (1, -1); r = 7 C. (h, k) = (-1, 1); r = 7 D. (h, k) = (-1, 1); r = 49
Mathematics