Use logarithmic differentiation to find the derivative of y.y = cos x
A. cos x
B. cos x
C. cos x
D. 
Answer: A
Mathematics
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Solve the initial value problem.
= 
+ x, x > 0; y(3) = 2
A. y = - 
+ 
- 
B. y = 
+ 
- 
C. y = 
+ 
D. y = - 
+ 
Mathematics
Determine the standard equation of the hyperbola with the given characteristics.The vertices are at (0, -6) and (0, 6); an asymptote has equation y = 
x.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Translate to an equation and solve. What percent of 55 is 44?
A. 80% B. 120% C. 125% D. 75%
Mathematics
Graph the circle.x2 + y2 - 8x + 6y = -9
A. 
B. 
C. 
D. 
Mathematics