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

A.
B.
C. - 
D. - 


Answer: B

Mathematics

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Solve the problem.Find the length of a rectangular lot with a perimeter of 108 m if the length is 8 m more than the width. 

A. 54 m B. 31 m C. 23 m D. 62 m

Mathematics

By graphing the function and zooming in toward the point where the graph crosses the y-axis, estimate the value of

What will be an ideal response?

Mathematics

Identify and graph the conic section. Label the center and/or vertex as appropriate. +  = 1

A. ellipse; center (-3, 5);
(6, 5), (-12, 5), (-3, 11), (-3, -1)

B. hyperbola; center (-3, 5);
(-9, 5), (3, 5)

C. hyperbola; center (-3, 5);
(6, 5), (-12, 5)

D. ellipse; center (-3, 5);
(-9, 5), (3, 5), (-3, -4), (-3, 14)

Mathematics

Express the product as a sum containing only sines or cosines.cos(5?) cos(4?)

A. [cos(9?) - cos ?]
B. [ cos ? + cos(9?)]
C. [cos(9?) - sin ?]
D. cos2(20?2)

Mathematics