Solve the equation on the interval 0 ? ? < 2?. sin ? - cos ? = -1

A. 0, 
B.
C.
D. 0, 


Answer: D

Mathematics

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What will be an ideal response?

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Perform the indicated operation.Let A =  and B = . Find A - B.

A.
B.
C.
D.

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Solve the problem.The equation D =  n(n-3) gives the number of diagonals, D, for a polygon with n sides. Find the number of sides n for a polygon that has 35 diagonals.

A. 7 sides B. 3 sides C. 10 sides D. 11 sides

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Factor completely.3x2 + 23x + 40

A. (x - 35)(x + 5) B. (x + 8)(3x + 5) C. (3x + 1)(x + 40) D. (3x + 8)(x + 5)

Mathematics