A.) Length= 2w-3 (w=width)
B.) 11=2w-3
First, we add 3 to both sides... And we get
14=2w
Next, we divide by 2 to get the w ( or width) by itself... and the answer would be
7=w... So the width of the rectangle is 7meters
Rewrite the term
Expand each term so we have
Use the fact that
Use the fact that when a is an even number
Simplify
Let me know if you need any clarifications, thanks!
It is either a or b I have a strong feeling it is b!!
the domain for sine and cosine are eithe -1 or 1 or in between, anything outside of that, like 3, is a value that won't give us an angle