3 years ago

4x + 4y + 2z = 8

1 answer:

5 0

The answer is no, because the first two equations are right but the third equation equals -16 instead of -15. So the answer is no (2,-2,4) is not the solution to all the system of equations.

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Someone pls help me ASAP! Express the following as the sum of its partial fraction: 2x+4/x(x+2)(x-4)

DaniilM [7]

Answer:

Step-by-step explanation:

$\frac{2x+4}{x(x+2)(x-4)} =\frac{a}{x} +\frac{b}{x+2} +\frac{c}{x-4} \\2x+4=a(x+2)(x-4) +bx(x-4)+cx(x+2)\\$

put x=0

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put x+2=0 or x=-2

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put x-4=0 or x=4

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$\frac{2x+4}{x(x+2)(x-4)} =\frac{-1}{2x} +0+\frac{1}{2(x-4)} \\\frac{2x+4}{x(x+2)(x-4)} =\frac{-1}{2x} +\frac{1}{2(x-4)}$

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2 years ago

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Two lines, a and b, are parallel. If both of the lines are rotated 90' in the same direction and then translated to the right by

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Answer:

O They will be the same line.

Step-by-step explanation:

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