Convert the polar equation to a rectangular equation.r = 
A. 9x2 + 8y2 + 6y - 9 = 0
B. 8x2 + 9y2 + 6x - 9 = 0
C. 9x2 + 9y2 + 6x - 9 = 0
D. 10x2 + 9y2 - 6x - 9 = 0
Answer: B
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Graph the given equation, indicating vertices, foci, and asymptotes (if it is a hyperbola).
+ 
= 1
A. 
Vertices: (±10, 0); Foci (±6, 0)
B. 
Vertices: (0, ±10); Foci (0, ±6)
C. 
Vertices: (±8, 0); Foci: (±10, 0)
D. 
Vertices: (0, ±10); Foci (±6, 0)
Find the sum.Find the sum of the first 90 terms of the arithmetic sequence: 1, 3, 5, 7, . . .
A. 8010 B. 8006 C. 8104 D. 8100
The growth of a town's population is modeled by 
. How large will the population be when 
? Round to a whole number.
?
A. 334 people B. 5,469 people C. 77 people D. 5,307 people E. 437 people
Solve the problem.The table below shows the probabilities of a person accumulating specific amounts of credit card charges over a 12-month period. Find the probability that a person's total charges during the period are $600 or more. 
A. 0.95 B. 0.84 C. 0.16 D. 0.05