Question

I need help with number 5

Answer 1

I think the answer is B

Answer 2

B. BD = 9

Explanation:

Simply set the 2 equations equal to each other (both are congruent due to perpendicular bisector):

6x + 3 = 3x = 6

3x + 3 = 6

3x = 3

x = 1

Then substitute 1 for x in BD

6(1) + 3

6 + 3

BD = 9