Write an equation to describe the variation. Use k for the constant of proportionality.x varies jointly as y and the square of z.
A. x + y + z2 = k
B. xyz2 = k
C. x = kyz2
D. x = k + y + z2
Answer: C
Mathematics
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Solve the differential equation.dy + 8y dx = e-8x dx
A. y = e-8x (x + c) B. y = e8x (x + c) C. y = x e-8x D. y = 8x + ce-8x
Mathematics
Graph.2x2 + 6y2 - 24 = 0
A. 
B. 
C. 
D. 
Mathematics
Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
List the x-values in the graph at which the function is not differentiable.
A. x = -1, x = 1 B. Function is differentiable at all points. C. x = 0 D. x = -1, x = 0, x = 1
Mathematics