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telo118 [61]
3 years ago
8

If you can right both It would help me a lot

Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

for the first question, z=56 degrees and for the last question x=54

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What is the solution to the system of equations shown below?
goblinko [34]

Answer:

  b.  (2, 5, 3)

Step-by-step explanation:

Trying the offered choices seems the fastest way to find the answer. The second choice works in all equations, hence is the solution.

Another strategy you can use is to see if the equations are dependent. Here, it looks like adding twice the third equation to the other two eliminates at least the x- and y-variables. If that eliminates z, then there are infinite solutions. Instead, it gives the equation ...

  7z = 21

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This answer is consistent with choice B, confirming that answer and eliminating the other choices.

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3 years ago
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