Solve the problem.A nuclear cooling tower cross section is a hyperbola having a diameter of 60 ft at the center. The distance between the two foci is 90 ft. Find a Cartesian equation for the hyperbola?
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 1
D. 
- 
= 1
Answer: A
Mathematics
You might also like to view...
Solve the quadratic equation by completing the square.7x2 - 2x - 4 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the work done by a force of 16i (newtons) in moving as object along a line from the origin to the point 
(distance in meters).
A. 47.81 joules B. 48.00 joules C. 50.60 joules D. 16.87 joules
Mathematics
Convert the measurement as indicated.31,680 ft to miles
A. 6.5 mi B. 6 mi C. 7 mi D. 158.4 mi
Mathematics
Solve the system by substitution.7x - 6y = 77x + 6y = 7
A. ?
B. 
C. 
D. 
Mathematics