Answer:
21 ft by 28 ft
Step-by-step explanation:
To maximize the area, see the attached.
Perimeter will be 4l+3w which is equal to the fencing perimeter, given as 168
4l+3w=168
Making l the subject then
4l=168-3w
l=42-¾w
Area of individual land will be lw and substituting l with l=42-¾w
Then
A=lw=(42-¾w)w=42w-¾w²
A=42w-¾w²
Getting the first derivative of the above with respect to w rhen
42-w6/4=0
w6/4=42
w=42*4/6=28
Since
l=42-¾w=42-¾(28)=21
Therefore, maximum dimensions are 21 for l and 28 for w
Answer:
5/7 mile per hour.
Step-by-step explanation:
Divide 2/7 by 2/5 to get to 0.714. After that, convert the decimal to a fraction and you get your answer.
Hope this helped!!! <3 :)
Answer:
Step-by-step explanation:
How is this question supposed to be answered with no specifications?
I’m pretty sure it’s 9x+8
3 people have four credit cards, because if you follow the "4" on the y axis, you will find 3 dots