Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
(x - 7)2 = 16
A. {23}
B. {3, -11}
C. {11, 3}
D. {4, -4}
Answer: C
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with intercepts (±5, 0) and (0, ±6)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Perform the indicated operation. Assume that all variables are nonnegative.
(6
- 7
)
A. 25
B. 25
C. 5
D. 60
- 7
Solve the problem.The table lists how financial aid income cutoffs (in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the financial aid cutoff for 1985.
A. $20,250 B. $17,625 C. $33,375 D. $51,750
Use the 2006 tax schedule for married taxpayers filing jointly below. What equation represents the taxable income in the interval over $123,700 but not over $188,450?
A. y = 0.28x - 10,596 B. y = 0.28x + 10,596 C. y = 0.25x - 10,596 D. y = 0.25x + 10,596