Find the exact value by using a half-angle identity.tan 
A. 2 + 
B. -2 + 
C. -2 - 
D. 2 - 
Answer: A
Mathematics
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Solve the problem.Find the area of a trapezoid with short base of 37 yd, long base of 53 yd, and height of 55 yd.
A. 1500 yd2 B. 2500 yd2 C. 5000 yd2 D. 980 yd2
Mathematics
Sketch the graph of the equation.-3x - 15y = -6
A. 
B. 
C. 
D. 
Mathematics
Complete the square to write the function in the form 
f(x) = -x2 + x + 9
A. f(x) = - 
2 + 
B. f(x) = - 
2 + 
C. f(x) = - 
2 + 
D. f(x) = - 
2 + 
Mathematics
Eliminate the parameter of the pair of parametric equations.x = t + 4, y = t2
A. y = 
+ x + 4
B. y = 
C. y = x2 + 16
D. y = x2 - 8x + 16
Mathematics