Express the given quantity in terms of sin x or cos x.sin (6? + x)
A. -sin x
B. cos x + sin x
C. cos x - sin x
D. sin x
Answer: D
Mathematics
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Solve the system using matrices. 6x - y + 9z = 219x + 7z = 342y+ z = 13
A. No solution B. (-3, 6, 6) C. (3, 1, 6) D. (3, 6, 1)
Mathematics
Determine the slope and the y-intercept for the linear equation.12x + y + 4 = 0
A. m = 12, y-intercept: (0, -4)
B. m = - 
, y-intercept: (0, - 
)
C. m = - 3, y-intercept: (0, - 
)
D. m = -12, y-intercept: (0, -4)
Mathematics
Solve.628 = 4 ? w
A. 4 B. 157 C. 624 D. 2512
Mathematics
Determine what fraction of the circumference of the unit circle the value represents.
A. 
B. 
C. 
D. 3
Mathematics