Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Foci at (0, -20), (0, 20); asymptotes: y = 
x, y = - 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: B
Mathematics
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Simplify the following:
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Solve the problem.How many 9-symbol codes can be formed using 5 different symbols? Repeated symbols are allowed.
A. 126 B. 1,953,125 C. 15,120 D. 3024
Mathematics
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.V = 
Bh for B = 24, h = 6
A. V = 48 B. V = 54 C. V = 288 D. V = 8
Mathematics