Find the foci of the given hyperbola.y2 - x2 - 4y + 10x - 70 = 0
A. (0, 7
), (0,- 7
)
B. (5 + 7
, 2), (5 - 7
, 2)
C. (5, 2 + 
), (5, 2 - 
)
D. (5, 2 + 7
), (5, 2 - 7
)
Answer: D
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A. 9 sides B. 1 sides C. 11 sides D. 3 sides
Solve the problem.John just bought a house. He made a $20,000 down payment and financed the balance with a 22-year home mortgage loan with an interest rate of 6% compounded monthly. His monthly mortgage payment is $875. What was the selling price of the house? Round your answer to the nearest dollar.
A. $147,445 B. $127,078 C. $148,737 D. $148,097 E. $128,242
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A. All real numbers except -6 and 2. B. All real numbers except -2 and 6. C. All real numbers except -3 and 3. D. All real numbers except 0 and 3.
The table shows, for some particular year, a listing of several income levels and, for each level, the proportion of the population in the level and the probability that a person in that level bought a new car during the year. Given that one of the people who bought a new car during that year is randomly selected, find the probability that that person was in the indicated income category. Round your answer to the nearest hundredth. 
$25,000 - $29,999
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