Answer:
it is irrational
Step-by-step explanation:
hav a nice dAY
The answer to your question is 1/4
Honestly just use desmos or mathyway
The answer is option "3, 40".
<span>m∠cab = 2x
m∠acb = x + 30
m∠cbd = 5x − 50
Now,
</span>m∠cab + m∠acb = m∠cbd
2x+x+30 = 5x-50
2x+x-5x = -50-30
-2x = -80
x = 40