Solve the problem.An elliptical riding path is to be built on a rectangular piece of property that measures 10 mi by 6 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
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Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?
D. 
?
Use Gaussian elimination or Gauss-Jordan elimination to solve the problem.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 95 black, 100 white and 90 red wires. How many of each cable were made?
A. 58 cable A 30 cable B 22 cable C B. 5 cable A 18 cable B 25 cable C C. 5 cable A 30 cable B 25 cable C D. 30 cable A 5 cable B 25 cable C
Find the domain of the function.
A. {x|x ? 0} B. {0} C. all real numbers D. {x|x ? 0}
Solve the problem.An auto repair shop charged a customer $532 to repair a car. The bill listed $92 for parts and the remainder for labor. If the cost of labor is $55 per hour, how many hours of labor did it take to repair the car?
A. 7 hr B. 9 hr C. 8.5 hr D. 8 hr