Use Gauss-Jordan elimination to find the solution. Write the solution as an ordered triple.x + y + z = 6x - z = -2  y + 3z = 11

A. (0, 1, 2)
B. (2, 0, 4)
C. (0, 4, 2)
D. (1, 2, 3)


Answer: D

Mathematics

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Use the graph to evaluate the limit.f(x)

A. - 
B.
C. ?
D. -1

Mathematics

The following table shows the population, in millions, of a certain town in the given year.

1985198719891991 2397221320461877? A.  Calculate the average rate of change in population from 1987 to 1989. (Be careful to get the sign right.)B.  Explain in practical terms the meaning of the number you calculated in part A.C.  Use averaging to estimate the population in 1988. What will be an ideal response?

Mathematics

Determine which of the fundamental laws of algebra is demonstrated.(5 × 9) × 2 = 5 × (9 × 2)

A. Commutative B. Associative C. Distributive

Mathematics

Evaluate the integral. 

A.  ln -  ln + C
B.  et ln -  et ln + C
C.  ln +  ln + C
D.  ln -  ln + C

Mathematics