Answer:
the 3rd one
Step-by-step explanation:
I just think
W=l-8
a=9
a=lw
9=(l-8)l
9=l²-8l
0=l²-8l-9
factor
0=(l-9)(l+1)
set to zero
l-9=0
l=9
l+1=0
l=-1, false length can't be negative
l=9
the length is 9 units long
Answer:
1,9
Step-by-step explanation:
The vertex is the highest point
lol;)
The answer would be negative 6 or -6.
Hope this helps!
Look the lesson up online. Sometimes there is an answer key
