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BabaBlast [244]
3 years ago
8

Solve Using Substitution.

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

  • (7, 5)

Step-by-step explanation:

<u>Given system:</u>

  • x + y = 12
  • -5x + 6y = -5

<u>Substitute:</u>

  • x = 12 - y
  • - 5(12 - y) + 6y = - 5
  • - 60 + 5y + 6y = - 5
  • 11y = 60 - 5
  • 11y = 55
  • y = 5

<u>Find x:</u>

  • x = 12 - 5 = 7
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If the measure of angle θ is 3π/4, the true statements are:

  1. sin(θ) = √2/2.
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Complete Question:

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B. The measure of the reference angle is 45

C. The measure of the reference angle is 30

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