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Mkey [24]
3 years ago
13

Find the measure of the angle indicated. please help and answer.

Mathematics
1 answer:
Juliette [100K]3 years ago
7 0
<C = 1/2(135 - 59)
<C = 1/2(76)
<C = 38

answer

A. 38°
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Jane multiplies her number by three and subtracts 2.
katrin [286]

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Let the number they chose be 'x'.

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Vaselesa [24]
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Answer:

  • dependent system
  • x = 2 -a
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Step-by-step explanation:

Let's solve this by eliminating z, then we'll go from there.

Add 6 times the second equation to the first.

  (3x -3y +6z) +6(x +2y -z) = (3) +6(4)

  9x +9y = 27 . . . simplify

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Add 13 times the second equation to the third.

  (5x -8y +13z) +13(x +2y -z) = (2) +13(4)

  18x +18y = 54

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Equations [eq4] and [eq5] are identical. This tells us the system is dependent, and has an infinite number of solutions. We can find them in terms of z:

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  y = z +1

So far, we have written the solutions in terms of z. If we use the parameter "a", we can write the solutions as ...

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_____

<em>Check</em>

First equation:

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  6 -3a -3a -3 +6a = 3 . . . true

Second equation:

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  2 -a +2a +2 -a = 4 . . . true

Third equation:

  5(2-a) -8(a+1) +13a = 2

  10 -5a -8a -8 +13a = 2 . . . true

Our solution checks algebraically.

6 0
3 years ago
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