Multiply and simplify.(1 - cos x)(1 + cos x)
A. cos2x - 1
B. 1 + 2 sin2x
C. sin2x
D. sin x + 2 csc x
Answer: C
Mathematics
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Graph the linear inequality.x - y > -6
A. 
B. 
C. 
D. 
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Determine algebraically whether the function is even, odd, or neither.f(x) = -4x2 + 6
A. even B. odd C. neither
Mathematics
Solve.Bruce and Elaine hired a magician for their daughter's birthday party. The magician charged $49 plus $7 for each child attending the party. The total bill came to $189. How many children attended the party?
A. 20 children B. 7 children C. 140 children D. 27 children
Mathematics
Find the exact value of the expression if ? = 30°. Do not use a calculator.g(?) = cos ?Find g(2?).
A. 
B. 
C. 
D. 1
Mathematics