F(x) = 2w + I = 2w 5000/w
f'(x) = 2 - 5000 / w^2
Fencing is minimum, so f(x) = 0
2 - 5000/w^2 = 0
2 = 5000 /w^2
2w^2 = 5000
w = 50
I = 5000/2
= 1000
2w + I
= 200
hope this helps
Answer:
where.... are the expressions?
Step-by-step explanation:
Step-by-step explanation:
x-9≤2(9-x)
distribute
x-9≤18-2x
add 2x on both sides
3x-9≤18
add 9 on both sides
3x≤27
divide by 3
x≤9
Answer:
(3X+4)^2
Step-by-step explanation:
Answer:
- Part A Option B
- Part B 5.71 l and 4.29 l
Step-by-step explanation:
<h3>Part A</h3>
Let x be the volume of 5% solution
<u>Then the volume of 40% solution is </u>
<u>Amount of acid is 10*0.20 for resultant solution, x*0.05 for 5% solution and (10- x)*0.40 is for 40% solution:</u>
- 10*0.20 = x*0.05 + (10 - x)*0.40
Correct equation is B.
<h3>Part B</h3>
<u>Solving</u>
- 2 = 0.05x + 4 - 0.4x
- 0.35x = 2
- x = 2/0.35
- x = 5.71 l of 5% solution
and
- 10 - x = 10 - 5.71 = 4.29 l of 40% solution
