Solve the equation by completing the square.t2 - t - 9 = 0
A. 
B. 
C. 
D. 1 ± 
Answer: A
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Convert the length as indicated.52,800 feet to miles
A. 11 mi B. 264 mi C. 10 mi D. 10.5 mi
Solve the absolute value inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.
> 5
A. (-?, -5) ? (5, ?)
B. [-5, 5]
C. (-5, 5)
D. (-?, -5] ? [5, ?)
Solve the system. 
- y = 10
+ 2y = 11
A. 
B. 
C. 
D. 
Write the first six terms of the sequence beginning with the given term. Then calculate the first and second differences of the sequence. State whether the sequence has a linear model, a quadratic model, or neither. ? a2 = -4 an = -2an - 1 ?
A. -4, 8, -16, 32, -64, 128First differences: 12, -24, 48, -96, 192Second differences: -36, 72, -144, 288Neither B. 0, 4, 8, 16, 32, 64First differences: 12, 24, 48, 96, 192Second differences: -36, 72, -144, 288Quadratic C. 0, 4, -8, 16, -32, 64First differences: -36, 72, -144, 288Second differences: 12, 24, 48, 96, 192Linear D. 0, -4, 8, -16, 32, -64First differences: 12, 24, 48, 96, 192Second differences: -36, 72, -144, 288Quadratic E. 4, -8, 16, -32, 64, -128First differences: -36, 72, -144, 288Second differences: 12, 24, 48, 96, 192Neither