A test plot of 
th of an acre produces 
pounds of shelled corn. If one bushel of shelled corn weights 56 pounds, find the yield, in bushels per acre.
A. 
bushels per acre
B. 
bushels per acre
C. 
bushels per acre
D. 
bushels per acre
E. 
bushels per acre
Answer: B
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Solve the problem.A nuclear cooling tower cross section is a hyperbola having a diameter of 56 ft at the center. The distance between the two foci is 100 ft. What is the equation for the hyperbola?
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 5
D. 
- 
= 1
Simplify the expression.
- 
A. 0
B. 
C. 
D. 
Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. The linear model for this data is 
where x is number of hours studied and y is score on the test. Use this model to predict the score on the test of a student who studies 13 hours. 
A. 76.2 B. 86.2 C. 86.8 D. 81.2
Find the vertices and foci of the given ellipse.
+ 
= 1
A. Vertices: (0, 9) and (0, -9);
Foci: (0, 3
) and (0, -3
)
B. Vertices: (9, 0)and (-9, 0)
Foci: (3
, 0) and (-3
, 0)
C. Vertices: (0, 81), (36, 0);
Foci: (0, 9) and (6, 0)
D. Vertices: (0, 81) and (0, -81);
Foci: (0, 9) and (0, -9)