Solve the problem.For a hyperbolic mirror the two foci are 38 cm apart. The distance of the vertex from one focus is 9 cm and from the other focus is 29 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 5
D. 
- 
= 1
Answer: A
Mathematics
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Match the given graph with its equation.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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Find the length of the curve r(t) = -2ti-tj+tk, -2?t?1.
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Given matrix A, find the indicated cofactor.Find A42.A =
A. -3 B. -6 C. 6 D. 0
Mathematics
Solve the problem.Cesaratto's Appliance and Auto Center is having a sale. Find the missing information for the items that were purchased. Round to the nearest cent.Price of TV:$249.61Sales tax rate:7%Sales tax:
A. $17.47 B. $19.97 C. $43.68 D. $14.98
Mathematics