Find the exact value. Do not use a calculator.cos 

A. - 
B.
C. - 
D.


Answer: A

Mathematics

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Find the indicated term.4, -12, 36, . . . ; the 10th term

A. 26,244 B. -78,732 C. -19,683 D. -708,588

Mathematics

Write the first four terms of the sequence defined by the recursion formula.a1 = -5 and an = -4an-1  for n ? 2

A. -5, 20, -80, 320 B. 5, -20, 80, -320 C. -5, 22, -82, 322 D. -5, -20, -80, -320

Mathematics

Solve the triangle. Round side lengths and angle measures to the nearest tenth when necessary. 

A. A ? 33.6°, B ? 112.9°, C ? 33.5° B. A ? 35.6°, B ? 108.9°, C ? 35.5° C. A ? 41.3°, B ? 97.4°, C ? 41.3° D. A ? 57.8°, B ? 64.4°, C ? 57.8°

Mathematics

Find an equation for the ellipse described. Graph the equation.Foci at (-5, -2) and (1, -2); length of major axis is 10

A.

 +  = 1
B.

 +  = 1
C.

 +  = 1
D.

 +  = 1

Mathematics