The angle does not matter. Think of it as finding the other side to a triangle. Use

a=39 (line AB)
b=b (the leg we need to find)
c=89 (line BD)


(subtract the 1521 from both sides)

(square root both sides)

b = 80
AD=80
Answer:
-9
Step-by-step explanation:
= 
Answer:
first x=2
second x=1
Step-by-step explanation:
Answer:
the answer is 67 coins are not Nickels
Step-by-step explanation:
29+24+16=67 so there is 27 Nickels in the jar
Answer:
Step-by-step explanation:
I’m not sure if u mean dividing but this is dividing..2/6=3 2/4=2 2/10=5