Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sec ? = - , csc ? > 0Find sin(2?).

A.
B.
C. - 
D.


Answer: B

Mathematics

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The function f is one-to-one. Find its inverse.f(x) = x2 - 3, x ? 0

A. f-1(x) =  + 3, x ? 0
B. f-1(x) = , x ? -3
C. f-1(x) = , x ? 3
D. f-1(x) =  + 3, x < 0

Mathematics

Sketch the graph of the line by locating the second point with the rise-and-run method.Through (-2, -5), m = 4

A.
B.
C.
D.

Mathematics

Multiply.-7(2)

A. 7 B. -14 C. -7 D. -16

Mathematics

Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula   How high above the ground must you be to see 30 kilometers. (Round to the nearest tenth of a meter.)

A. 19.2 m B. 73.5 m C. 257.1 m D. 8.6 m

Mathematics