Use the fundamental identities to find the value of the trigonometric function.Find tan ?, given that sec ? =  and ? is in quadrant IV.

A. - 
B. - 
C. - 
D. - 


Answer: C

Mathematics

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Simplify. + 

A.
B.  
C.  
D.  

Mathematics

Determine the vertex of the graph of the parabola.y = x2 - 2x - 8

A. (1, 9) B. (- 1, 9) C. (1, - 9) D. (- 1, - 9)

Mathematics

Solve the inequality.x3 > 5x2

A. (5, ?) B. (-?, 5) C. (0, 5) D. (-?, 0) or (5, ?)

Mathematics

Solve the problem.Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A.  Eggs Flour Sugar Shortening Milk  = A Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Write the orders as a 1 X 4 matrix and, using matrix multiplication, write as a matrix the amount of each ingredient needed to fill the day's orders.

A.
B.
C.
D. These matrices cannot be multiplied.

Mathematics