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OverLord2011 [107]
3 years ago
14

MZTRI = 3x - 5, mZIRB = x + 27, and mZTRB = 86. Find the mZTRI.

Mathematics
1 answer:
denis23 [38]3 years ago
7 0

Answer:

m∠TRI  = 43

Step-by-step explanation:

m∠TRI +  m∠IRB = m∠TRB

3x - 5 + x + 27 = 86

3x + x - 5 + 27 = 86   {Combine like terms}

     4x  + 22    = 86       {Subtract 22 from both sides}

               4x = 86 - 22

                4x = 64           {Divide both sides by 4}

                  x = 64/4

                 x = 16

m∠TRI = 3x - 5

           = 3*16 - 5

          = 48 - 5

          = 43

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RUDIKE [14]

Option B) (x + 3)^2 − 5 is the correct answer

Step-by-step explanation:

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We will solve eah expression in the options to chek which is equivalent to given expression

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<u>A) (x + 3)^2 + 5</u>

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NOT equivalent

<u>B) (x + 3)^2 − 5</u>

(x + 3)^2 − 5 = x^2+6x+9-5\\= x^2+6x+4

Equivalent

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Option B) (x + 3)^2 − 5 is the correct answer

Keywords: Equivalent expressions, polynomials

Learn more about polynomials at:

  • brainly.com/question/2116906
  • brainly.com/question/2131336

#LearnwithBrainly

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