Simplify the expression.1 - 2 sin2 2x
A. cos 8x
B. cos 4x
C. 2 sin 4x
D. 
sin 16x
Answer: B
Mathematics
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Graph the solution set to the inequality.x + y < -2
A. 
B. 
C. 
D. 
Mathematics
Find the center (h, k) and radius r of the circle. Graph the circle.(x + 5)2 + (y - 1)2 = 4
A. (h, k) = (5, - 1); r = 2
B. (h, k) = (-5, 1); r = 2
C. (h, k) = (-5, 1); r = 4
D. (h, k) = (5, - 1); r = 4
Mathematics
Graph the function by starting with the graph of 
and using transformations.f(x) = -2(x + 4)2 + 5
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
x = -9
A. x = - 
B. x = - 
C. x = -12
D. x = -36
Mathematics