Answer:
17
Step-by-step explanation:
First figure out how many times 9 goes into 31, which is 3 times (27)
You subtract 27 from 31 and get 4.
Bring down the 5.
Now the number is 45.
How many times can 9 go into 45? 5 times!!
So 315 ÷ 9 = 35
Answer:
pic above.
Step-by-step explanation:
sin A : BC/BA
cos A: CA/BA
tan A: BC/CA
same process for angle B