Calculate the period of the function.f(x) = cos 13x - cos 8x

A. 2?
B. 104?
C. 208?
D. 104

Answer: A

Mathematics

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Solve.Find the difference of 533 and 87.

A. 620 B. 446 C. 440 D. 346

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Simplify the expression. ? ?

A. ?

?


B. ?
C. ?
D. ?
E. ?

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Complete.5.9 ft =  cm (Round to the nearest tenth.)

A. 179.8 B. 149.9 C. 15.0 D. 232.3

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Find an equation in slope-intercept form of the line satisfying the specified conditions.Passing through the points (1, 13) and (-3, -3)

A. y = -4x - 9 B. y = 4x + 9 C. y = 4x - 9 D. y = -4x + 9

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