Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 165°
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.
x = 61 - x
A. 
? 0.938
B. ln 
- ln 6 ? -1.674
C. 
? 1.030
D. 
? 1.066
Mathematics
If s denotes the length of the arc of a circle of radius r subtended by a central angle ?, find the missing quantity.s = 4.84 meters, ? = 2.2 radians, r = ?
A. 2.2 m B. 1.5 m C. 1.1 m D. 0.45 m
Mathematics
Solve the problem.Two forces of 560 N and 222 N act at a point. The resultant force is 634 N. Find the angle between the forces.
A. 81.0° B. 112.7° C. 165.1° D. 99.0°
Mathematics
Rewrite the division as a multiplication.- 
A. -14 ? 
or 14 ? 
B. -8 ? 
or 8 ? 
C. -8 ? -14 or 8 ? 14
D. -8 ? 14 or 8 ? -14
Mathematics