The augmented matrix of a system of equations has been transformed to an equivalent matrix in row-echelon form. If the system is consistent, then give the solution. If it is not, then state that it is inconsistent.

A. (58, -20, 5)
B. (58, -22, 5)
C. (63, -22, 5)
D. Inconsistent


Answer: C

Mathematics

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An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.(x2 - 1)1/2 ? (2x + 5)1/2 ? 2 + (2x + 5)3/2 ? (x2 - 1)-1/2 ? 2x

A.
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C. (x2 - 1)1/2 (2x + 5)1/2(5x2 + 5x - 3)
D.

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Find the midpoint between the two points.(2, 6) and (5, 1)

A.
B.
C. (77)
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A. Yes B. No

Mathematics