Find the exact value.Given that sin ? = -  with ? in quadrant IV, find cos 2?.

A.
B. - 
C. - 
D.


Answer: C

Mathematics

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Integrate the function.

A. 5 ln  + C
B.   + C
C. 5  + C
D. 5  + C

Mathematics

Solve the system of equations using substitution.

A. x = -5, y = -1; x = 8, y = 
or (-5, -1), 
B. x = 5, y = 1; x = -8, y = - 
or (5, 1), 
C. x = 5, y = 1; x = - , y = -8
or (5, 1), 
D. x = -5, y = -1; x = , y = 8
or (-5, -1), 

Mathematics

Write the compound inequality as an absolute value inequality. Do not simplify.-0.7 ? x +  ? 0.7

A.  ? 0.7
B. x +  ? 
C.  ? 0.7
D.  ? 0.7 + 

Mathematics

Solve the equation. = 

A. , - 
B.
C. -8, 6
D. - 

Mathematics