Find the center and the radius of the circle.x2 + y2 + 4x + 10y + 16 = 0
A. (2, 5); 13
B. (-2, -5); 
C. (-2, -5); 13
D. (2, 5); 
Answer: B
Mathematics
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Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Mathematics
a = 3, b = 4, and c = 5. Using the Law of Cosines, find all angles in the triangle.
a. A = 90ø, B = 45ø, and C = 53ø b. A = 53.13ø, B = 90ø, C = 36.87ø c. A = 45ø, B = 45ø, C = 36.87ø d. A = 36.87ø, B = 53.13ø, C = 90ø e. A = 60ø, B = 60ø, C = 60ø
Mathematics
Simplify the expression involving rational exponents.
-2/3
A. 
B. 
C. 
D. 
Mathematics
Determine the maximum possible number of turning points for the graph of the function.f(x) = 6x3 + 5x2 - 9x - 15
A. 2 B. 3 C. 6 D. 0
Mathematics