Simplify the root, if possible.
A. 
B. cannot be simplified
C. 2x + 4
D. (2x + 4)2
Answer: A
Mathematics
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True or false?A person who scored at the eightieth percentile in a test answered eighty percent of the questions correctly.
A. True B. False
Mathematics
Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = -x2 - 6x - 3
A. f(x) = -(x - 3)2 - 30 vertex: (3, -30) B. f(x) = -(x + 6)2 - 3 vertex: (-6, -3) C. f(x) = -(x - 3)2 - 12 vertex: (3, -12) D. f(x) = -(x + 3)2 + 6 vertex: (-3, 6)
Mathematics
Simplify.2{[8(x - 1) + 5] - [2(4x - 1) + 5]}
A. -12 B. 16x - 6 C. 32x - 12 D. 0
Mathematics
Solve by completing the square.a2 + 14a + 13 = 0
A. 26, -13
B. -1, -13
C. 
, -
D. 1, 13
Mathematics