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yarga [219]
3 years ago
6

1/3(33x +15) - 1/3 ( 21x +18) =10

Mathematics
1 answer:
inn [45]3 years ago
7 0
          ¹/₃(33x + 15) - ¹/₃(21x + 18) = 10
¹/₃(33x) + ¹/₃(15) - ¹/₃(21x) - ¹/₃(18) = 10
                             11x + 5 - 7x - 6 = 10
                             11x - 7x + 5 - 6 = 10
                                            4x - 1 = 10
                                                + 1   + 1
                                                 4x = 11
                                                  4      4
                                                   x = 3³/₄
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Answer:

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Step-by-step explanation:

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How yo resolve x/-3-2=9
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X/-3-2=9
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Consider quadrilateral BCEF inscribed in circle A. Diagonals EB and CF intersect at point D. Select all the statements that are
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Answer:

m\angle ECB+m\angle EFB=180

m\angle CDB\cong m\angle EDF

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Step-by-step explanation:

From the diagram, quadrilateral BCEF is a cyclic quadrilateral.

Opposite angles if a cyclic quadrilateral sum up to 180°

m\angle ECB+m\angle EFB=180

The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent.

m\angle CDB\cong m\angle EDF

Also sum of angles in triangle CBD is 180°.

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

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