Write a word description of the set.{10, 11, 12, 13, ...}
A. the set of natural numbers greater than 9
B. the set of two-digit natural numbers
C. the set of natural numbers less than 14
D. the set of natural numbers
Answer: A
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Simplify.
A. 35
B. 7
C. 5
D. 15
Solve the system of equations using substitution.
A. x = -3, y = -1; x = -1, y = -3; x = -3, y = 1; x = -1, y = 3 or (-3, -1), (-1, -3), (-3, 1), (-1, 3) B. x = 3, y = 1; x = 1, y = 3; x = 3, y = -1; x = 1, y = -3 or (3, 1), (1, 3), (3, -1), (1, -3) C. x = 3, y = -3; x = -3, y = -1; x = 1, y = 3; x = -1, y = -3 or (3, -3), (-3, -1), (1, 3), (-1, -3) D. x = 3, y = 1; x = -3, y = -1; x = 3, y = -1; x = -3, y = 1 or (3, 1), (-3, -1), (3, -1), (-3, 1)
Solve by completing the square.a2 - 2a - 3 = 0
A. 3, -1
B. -2, -1
C. -3, 1
D. ± 
Express the value of the given repeating decimal as a fraction. [Hint: Write as an infinite series.]
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A. ?
B. ?
C. ?
D. 
?
E. ?