Factor out the greatest common factor.(x - 5)(x + 5) + (x - 5)(x + 7)
A. 2(x - 5)(2x + 12)
B. (x - 5)(x + 12)
C. (x - 5)(2x + 12)
D. 2(x - 5)(x + 6)
Answer: D
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Solve.The population of a small town in 1988 was 11,000 people. Due to decline in industrial growth the population has since been decreasing at a rate of 4% every year. What was the population of this town in 1998?
A. 5925 people B. 6586 people C. 7313 people D. 8112 people
Describe the transformations that produce the graph of g from the graph of f.
; g(x) = - 
A. Shift 1 units to the left. Reflect it across the x-axis. B. Shift 1 units to the right. Reflect it across the x-axis. C. Shift -1 units to the left. Reflect it across the x-axis. D. Shift 1 units to the left. Reflect it across the y-axis.
Write down all the subsets of the given set.{1, ?, 6, ?}
A. {1}, {?}, {6}, {?}, {1, ?}, {1, 6}, {1, ?}, {?, 6}, {?, ?}, {6, ?}, {1, ?, 6}, {1, ?, ?}, {1, 6, ?}, {?, 6, ?}, {1, ?, 6, ?} B. {1}, {?}, {6}, {?}, {1, ?}, {1, 6}, {1, ?}, {?, 6}, {?, ?}, {6, ?}, {1, ?, 6}, {1, ?, ?}, {1, 6, ?}, {?, 6, ?}, ? C. {1}, {?}, {6}, {?}, {1, ?}, {1, 6}, {1, ?}, {?, 6}, {?, ?}, {6, ?}, {1, ?, ?}, {1, 6, ?}, {?, 6, ?}, {1, ?, 6, ?}, ? D. {1}, {?}, {6}, {?}, {1, ?}, {1, 6}, {1, ?}, {?, 6}, {?, ?}, {6, ?}, {1, ?, 6}, {1, ?, ?}, {1, 6, ?}, {?, 6, ?}, {1, ?, 6, ?}, ?
Write the system of linear equations represented by the augmented matrix. Then use back-substitution to solve. (Use variables x, y, and z.)
A. x = 35, y = -3, z = 1 B. x = 4, y = 1, z = 5 C. x = 1, y = -4, z = -5 D. x = 1, y = 4, z = 5 E. x = -4, y = 5, z = -1