Differentiate.y = 
A. x4
B. x5ln x - 
C. x5
D. x5ln x
Answer: D
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Find the vertex, focus, and directrix of the parabola.y2 = -36x
A. Vertex: V(0, 0); focus: F(-9, 0); directrix: x = 9 B. Vertex: V(0, 0); focus: F(9, 0); directrix: x = -9 C. Vertex: V(0, 0); focus: F(0, -9); directrix: y = 9 D. Vertex: V(0, 0); focus: F(-9, 0); directrix: y = 9
Solve the problem.An open box is to be made from a rectangular piece of tin by cutting two inch squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin.
A. 4 in. by 9 in. B. 5 in. by 10 in. C. 5 in. by 9 in. D. Not enough information
Find fractional notation for the ratio. You need not simplify.A baseball team has played 7 games so far this season. The team won 5 games. What is the ratio of games won to games played so far?
A. 
B. 
C. 
D. 
Find the standard form of the equation of the ellipse with vertices 
and eccentricity 
.
A. 
B. 
C. 
D. 
E. 