Find the exact value of the expression.sin 250° cos 10° - cos 250° sin 10°
A. - 
B. 
C. 
D. - 
Answer: D
Mathematics
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Solve the problem.A restaurant bill of $67.69 was shared equally by 6 people. How much was each person's share? Round to the nearest cent.
A. $11.39 B. $12.28 C. $11.28 D. $12.39
Mathematics
Determine whether the graph of the given function is symmetric with respect to the y-axis, symmetric with respect to the origin, or neither.f(x) = -2x2 + 1
A. y-axis B. Origin C. Neither
Mathematics
Graph the line containing the point P and having slope m.P = (0, 2); m = - 
A. 
B. 
C. 
D. 
Mathematics
Graph the curve whose parametric equations are given.x = 2t - 1, y = t2 + 5;-4 ? t ? 4
A. 
B. 
C. 
D. 
Mathematics