Simplify by taking the roots of the numerator and the denominator. Assume all variables represent positive numbers.
A. 
B. x 
C. 4x
D. 
Answer: A
Mathematics
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Find dy/dt.y = cos(
)
A. -sin(
)
B. - 
sin(
)
C. -sin
D. 
sin(
)
Mathematics
Find the volume of the solid generated by revolving the region about the given line.The region in the first quadrant bounded above by the line 2x + y = 4, below by the x-axis, and on the left by the y-axis, about the line x = -2
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Solve the system of equations using substitution.
A. x = -2, y = 3; x = -3, y = 2 B. x = 2, y = 3; x = 3, y = 2 C. x = -2, y = -3; x = -3, y = -2 D. x = 2, y = -3; x = 3, y = -2
Mathematics
Perform the requested composition or operation.Find (fg)(3) when f(x) = x + 7 and g(x) = -5x2 + 12x + 6.
A. 510 B. 156 C. 12 D. -30
Mathematics