Graph the system of inequalities.x2 + y2 ? 9y - x2 > 0
A. 
B. 
C. 
D. 
Answer: A
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Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
(x - 7)2 = -121
A. {-7 ± 11i}
B. 
C. {7 ± 11i}
D. {11 ± 7i}
Solve the problem.How long will it take for $9800 to grow to $46,100 at an interest rate of 2.1% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 0.74 yr B. 73.73 yr C. 7.37 yr D. 7373.48 yr
Find the first term and the common ratio of the geometric sequence.-2, -8, -32, -128, -512, . . .
A. a1 = 4, r = -4
B. a1 = -2, r = 
C. a1 = 4, r = -8
D. a1 = -2, r = 4
Solve the problem.By comparing unit prices, determine which brand of handcream is the better buy.Brand X: 8 oz. for $2.16Brand Y: 20 oz. for $4.60Brand Z: 24 oz. for $6.00
A. Brand X and Brand Y have the same unit price. B. Brand Z C. Brand X D. Brand Y