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26 June, 04:18

3. Find mZBDC

(-3x + 20°

5

(-2x + 55)

a. 290

b. 61°

c. 25°

d. 750

+2
Answers (1)
  1. 26 June, 04:31
    0
    -3x + 20 + - 2x + 55 = 180

    -5x + 75 = 180

    -5x = 105

    x = - 21

    -3 (-21) + 20 = 63 + 20 = 83°

    -2 (-21) + 55 = 42 + 55 = 97°
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