Answer:
Step-by-step explanation:
Alright, lets get started.
Using sin Law,

Plugging the value of a, b and angle A




taking sin inverse on both sides

The may be another value of B that will called B' = 
We will not consider this B' value because the um of angle B' and A will exceeds 180 degree (
)
Thats why only one triangle is possible. : Answer
Hope it will help :)
X-12 +5x=90
That’s the set up
Let me know if you need more help
Answer:
300
Step-by-step explanation:
20*30=600
600/2=300
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Have a nice day.
6. 40 minutes (15/3 = 5 minutes/mile) - 5*8 = 40 min
7. 15,840 ft / 5 = 3.168 ft