Simplify the expression.
A. sin x
B. -cos x
C. cos x
D. -sin x
Answer: B
Mathematics
You might also like to view...
Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln(x - 8)
A. 
B. - 
C. 
D. 
Mathematics
Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = csc u, u = x7 + 10x
A. - csc (x7 + 10x) cot (x7 + 10x) B. -(7x6 + 10) csc x cot x C. -(7x6 + 10) cot2(x7 + 10x) D. -(7x6 + 10) csc (x7 + 10x) cot (x7 + 10x)
Mathematics
Use the given table for y = ax2 + bx + c to solve ax2 + bx + c < 0 or ax2 + bx + c > 0, as indicated.y = x2 + 16x; ax2 + bx + c > 0
A. -4 < x < 0 B. -16 < x < 0 C. x < -4 or x > 0 D. x < -16 or x > 0
Mathematics
Complete.59 mph = 
km/h (Round to the nearest thousandth.)
A. 94.931 B. 106.731 C. 36.669 D. 32.778
Mathematics