It’s the last one & the second one
X is 5 in this case!!!!hope it helps
Answer: x = 20.
Step-by-step explanation:
x and (3x + 10) combine to form a right angle, shown in the diagram by the small square joining the perpendicular lines.
Right angles are 90 degrees, so you can add both angles to get 90:

Answer:
ik bro sorry I didn't get back to you in a little bit and then I'll