Use the sum and difference identities to evaluate exactly.cos 165°
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Classify the polygon by name. If it is a quadrilateral, give its specific name.
A. Square B. Rhombus C. Hexagon D. Rectangle
Mathematics
Use the LCD to clear fractions and solve the given equation.
x - 
x = 5
A. -35 B. 40 C. -40 D. 35
Mathematics
Rewrite with positive exponents, and simplify, if possible.
A. - 
B. p7/8
C. p8/7
D. - p7/8
Mathematics
Evaluate the definite integral.
dx
A. 256
B. 384
C. 
D. 32
Mathematics