Find an equation for the ellipse described.Vertices at (5, -4) and (5, 8); length of minor axis is 6
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Solve the problem.How long would it take to drive a distance of 11 miles if you drive at a constant speed of 53 miles per hour? Round your answer to the nearest hundredth if necessary.(Distance = Speed × Time)
A. 583.0 hours B. 0.21 hours C. 2.08 hours D. 4.82 hours
Find the derivative of the function.
A manufacturing company wants to maximize profits on products A, B, and C. The profit margin is $3 for A, $6 for B, and $15 for C. The production requirements and departmental capacities are as follows: 
What is the maximum profit if the profit margin on A changes to $7.00?
A. $266,000 B. $98,000 C. $105,000 D. $225,000
Find the distance between the point and the line. Round your answer to four decimal places.
?
A. 
B. 
C. 
D. 
E. 