Answer:
12
Step-by-step explanation:
a2 +b2 = c2
a2 + 9 2 = 15 2
a2 + 81 = 225
- 81 - 81
a2 = 144
a = 12
A-b
difference means subtract
Answer:
B
Step-by-step explanation:
Answer:
Can't see it soary
Step-by-step explanation:
If you know the answer, it is very easy to prove. You just have to do 27 - 15 = 12. Then, you do 12/15 is equal to 4/5, which is 80 percent. :)
