Find the perimeter of the figure.
A. 10x + 7
B. 5x + 7
C. 10x - 7
D. 10x + 14
Answer: A
Mathematics
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Use trigonometric identities to solve each equation in the interval [0, 2?]1 + cos x = 2 sin2 x
A. 
B. 
C. 
D. 
Mathematics
Graph the function.f(x) = 2x(x + 2)(x - 1)
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality.x2 - 2x ? 0
A. [-2, 0] B. (-?, -2] or [0, ?) C. (-?, 0] or [2, ?) D. [0, 2]
Mathematics
Solve the equation and check.
A. x = 74 B. x = 78 C. x = 79 D. x = 75 E. x = 76
Mathematics