Angle AOB will be 21 because...
Answer:
-2 1/2
Step-by-step explanation:
we can use pythagorean identieis
remember that 
also remember that 
and 
so if we take and divide both sides by 
we get
subtracting 
from both sides
now subsitute into original problem
the answer is -1
I see you're probably trying to use a math editor to present this problem. Unfortunately, I'm unsure how to decipher your "-\frac {a }{8.06)." What fraction are you speaking of?
Given "<span>#-\frac { a } { 8.06} + 7.02= 18.4#," all I can say with certainty is that you could legitimately subtract 7.02 from both sides:
</span><span>#-\frac { a } { 8.06} + 7.02= 18.4#
- 7.02 = -7.02
After I've heard back from you, I'll try to help you solve the entire problem.
</span>
Answer:
5 10
2 4
Step-by-step explanation:
