Asked by Grace
A rectangular field is to be fenced off with 120 m of fencing materials. the length of the field is x. express the area in square meters of the field as a function of x.
Answers
Answered by
Grace
f(x)=(120m^3)x
Answered by
Steve
nice try, but you're mixing things up. Why do you say 120 m^3? m^3 is volume, not are or length! And why multiply the perimeter by the length, anyway?
Just take a step back and work things out.
The area is length * width
The 120m of fencing reaches around the field -- that is the perimeter.
If the perimeter is 120, that means that
2(length+width)=120
length+width=60
So, if the length is x,
width = 60-x
That means that the area is
x(60-x)
and that is in m^2: meters * meters
Just take a step back and work things out.
The area is length * width
The 120m of fencing reaches around the field -- that is the perimeter.
If the perimeter is 120, that means that
2(length+width)=120
length+width=60
So, if the length is x,
width = 60-x
That means that the area is
x(60-x)
and that is in m^2: meters * meters
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.