Find the standard-form equation of the hyperbola whose graph is shown.
A. 4y2 - 6x2 = 1
B. 16y2 - 36x2 = 1
C. 
- 
= 1
D. 
- 
= 1
Answer: D
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Provide an appropriate answer.Find 
when u = -6 and v = -4 if w(x, y, z) = 
, x = 
, y = u + v, and z = 
A. 
= - 
B. 
= 
C. 
= - 
D. 
= - 
Solve the problem. Then identify the piece of information that is unnecessary to solve the problem.A rental car company that rents cars for local-only use charges $50 plus $0.20 for each mile the rental car is driven. If a customer gives the rental attendant $100 for a charge of $60, how many miles did the customer drive?
A. 300 miles unnecessary information: the $50 flat charge B. 49 miles unnecessary information: the $0.20 per-mile charge C. 50 miles unnecessary information: giving $100 to attendant D. 25 miles unnecessary information: the $60 charge
Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. There are currently 61 million cars in a certain country, decreasing by 4% annually. How many years will it take for this country to have 50 million cars? Round to the nearest year.
A. 60 years B. 5 years C. 11 years D. 3 years
Identify the numbers from the given list that belong to the indicated set. 12, 
, -24, 0, 
, - 
, 9.9, 
Natural numbers
A. 12, 0
B. -24, 0, 12
C. 12, 
D. 12, 0, 