Given a = 5, b = 4 and c = 6 use the Law of Cosines to solve the triangle for the value of A. Round answer to two decimal places.

A) 41.41°
B) 80.44°
C) 60.33°
D) 55.77°
E) 82.82°

D) 55.77°

Mathematics

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Find the value.If F(x, y) = tan-1 , find Fx(-5, 6) and Fy(-5, 6).

A. Fx(-5, 6) = - , Fy(-5, 6) = - 
B. Fx(-5, 6) = - , Fy(-5, 6) = - 
C. Fx(-5, 6) = - , Fy(-5, 6) = 
D. Fx(-5, 6) = - , Fy(-5, 6) = - 

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Mathematics

Find the indicated trigonometric function of ?.cot ?

A.
B. 1
C.
D.

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Mathematics

State the solution set to the inequality by reading the graph.x4 - 10x2 + 9 ? 0y = x4 - 10x2 + 9

A. (-?, -3] ? [3, ?) B. [-3, -1] ? [1, 3] C. (-?, -3] ? [-1, 0) D. (-?, -3] ? [-1, 1] ? [3, ?)

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Mathematics

Simplify using the quotient rule, if possible.

A.
B. x12
C. x10 - x2
D. x8

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Mathematics