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matrenka [14]
3 years ago
8

A cylinder has a volume of 198 cm3, and its

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
6 0

Answer:

height= 9 cm

Step-by-step explanation:

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Solve the following 3 × 3 system. Enter the coordinates of the solution below.
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Answer:

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Step-by-step explanation:

We notice that the coefficients of z are such that elimination of the z term from the equations is made easy.

Adding equations 1 and 2:

  (2x -3y -2z) +(x +3y +2z) = (4) +(-7)

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Adding equations 2 and 3:

  (x +3y +2z) +(-4x -4y -2z) = (-7) +(10)

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Substituting for x, we get ...

  (-3)(-1) -y = 3

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Then z can be found from any equation. Substituting for x and y in the second equation gives ...

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  z = -3 . . . . . .divide by 2

The solution is (x, y, z) = (-1, 0, -3).

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