Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution.4x + y = -14x - z = 4y + z = -5
A. {(x, -1 - 4x, 4 - 4x)}
B. {(x, -1 - 4x , 4x)}
C. {(0, -1, -4)}
D. {(x, -1 - 4x, 4x - 4)}
Answer: D
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = 1 - x - 2y
A. 
B. 
C. 
D. 
Mathematics
At the given point, find the line that is normal to the curve at the given point.2x2y - ? cos y = 3?, normal at (1, ?)
A. y = 
x - 
+ ?
B. y = -2?x + 3?
C. y = 
x - 
+ ?
D. y = - 
x + 
+ ?
Mathematics
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 6x2, y = 6
A. 
?
B. 54?
C. 
?
D. 
?
Mathematics
Solve the problem.Find two numbers whose sum is 51 and whose difference is 5.
A. 47 and 4 B. 30 and 35 C. 23 and 28 D. 21 and 30
Mathematics