Find all solutions to the equation. Express the solution in degrees.tan x = -1

A. 315° + 360°n
B. 135° + 360°n
C. 225° + 180°n
D. 135° + 180°n


Answer: D

Mathematics

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Multiply.(1)(-5)(-7)(-3)(3)

A. 105 B. -105 C. 315 D. -315

Mathematics

Find all solutions of the equation.7 cos x + 8 = 5 cos x+ 7

A. x =  + n? or x =  + n?
B. x =  + 2n? or x =  + 2n?
C. x =  + n? or x =  + n?
D. x =  + 2n? or x =  + 2n?

Mathematics

Does the problem involve permutations or combinations? Do not solve.From 8 names on a ballot, a committee of 3 will be elected to attend a political national convention. How many different committees are possible?

A. permutations B. combinations

Mathematics

Factor completely.7y3 - 875

A. (7y - 5)(y2 + 5y + 175) B. 7(y - 5)(y2  + 25) C. 7(y - 5)(y2 + 5y + 25) D. 7(y + 5)(y2 - 5y + 25)

Mathematics