given :- tanA=4/3
we already know that tanA=P/B
From Pythagorean theorem we get..
H²=P²+B²
H²=4²+3²
H²=16+9
H²=25
H²=5²
H=5
SinA=P/H
CosA=B/H
from that
SinA= 4/5
CosA=3/5
Answer:
The discount is $18
Step-by-step explanation:
Answer:
![5m-9y](https://tex.z-dn.net/?f=5m-9y)
Step-by-step explanation:
![7m-3y-(2m+6y)](https://tex.z-dn.net/?f=7m-3y-%282m%2B6y%29)
Distribute the negative sign to 2m+6y.
![7m+-3y+-2m+-6y](https://tex.z-dn.net/?f=7m%2B-3y%2B-2m%2B-6y)
Combine the like terms.
![7m+-2m+-3y+-6y](https://tex.z-dn.net/?f=7m%2B-2m%2B-3y%2B-6y)
![5m-9y](https://tex.z-dn.net/?f=5m-9y)