Simplify the expression. 
A. cos2 x
B. -1
C. 1
D. sin2 x
Answer: D
Mathematics
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Find an equation of the line described. Write the equation in slope-intercept form if possible.Through (-4, -33) and (10, 79)
A. y = - 
x - 
B. y = -8x - 65
C. y = 8x - 1
D. y = 
x - 
Mathematics
Find the perimeter of (distance around) the given figure by adding the lengths of the sides.
A. 8.702 in. B. 10.502 in. C. 7.226 in. D. 9.026 in.
Mathematics
Find the quotient and simplify.
÷ 
A. - 
B. 
C. - 
D. - 
Mathematics
Solve the equation.
= 0
A. {-5, -2} B. {5, 2} C. {-10, -4} D. {10, 4}
Mathematics