Answer:
x < 10
Explanation:
I'm assuming your problem is asking for me to solve for x. This will be done using inequalities since the angle ABD is less than 90.
Step 1: Set up initial inequality
(4x-1) + (6x-9) < 90
Step 2: Combine terms on the left side of the inequality
4x + 6x - 1 - 9 < 90
10x - 10 < 90
Step 3: Isolate the x term on the left side of the inequality
10 x < 100
Step 4: Solve for x
x < 10
This means that x can be any number less than 10.