Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 + 12x + c
A. 144; (x + 12)2
B. 36; (x + 6)2
C. 12; (x + 144)2
D. 6; (x + 36)2
Answer: B
Mathematics
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Solve the problem.A data set consists of 113 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie within two standard deviations of the mean? Round your answer to the nearest whole number.
A. 108 B. 77 C. 113 D. 54
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Solve for x.
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Fill in the blank(s) with the appropriate word(s).
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Graph a parabola having the stated characteristics.Vertex (0, -1) and passing through points (-2, 3) and (2, 3)
A.
B.
C.
D.
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Find the GCF.64a10b3, 40a6b10
A. 4a4b7 B. 8a6b3 C. 8a10b10 D. 320a10b10
Mathematics