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2 votes
Please help i'm literally terrible at this !

Please help i'm literally terrible at this !-example-1
User GraSim
by
4.1k points

2 Answers

1 vote

Answer:

m<CBD equals 54

Explanation:

Since that is a right angle do (7x-9)+(4x)=90

=11x-9=90

=11x=99

x=9

CBD=7x-9

7(9)-9=54

Hope this helps

User Bill Bridge
by
4.0k points
5 votes

AB have a 90° angle with BC, so the angles ABD + CBD = 90

(7x - 9)° + 4x° = 90°

7x + 4x = 90 + 9

11x = 99

x = 99/11

x = 9

So the angles are:

7x - 9 -> 7.9 - 9 = 54°

4.9 = 36°

User Obum
by
4.9k points