Answer:
Step-by-step explanation:
GIVEN: A fence is to be built to enclose a rectangular area of 
square feet. The fence along three sides is to be made of material that costs 
dollars per foot, and the material for the fourth side costs 
dollars per foot.
TO FIND: Find the dimensions of the enclosure that is most economical to construct.
SOLUTION:
Area of rectangular fence 
let the length of fence 
let the width of fence 
let 
be the smaller side
Area of rectangular fence enclosure 
cost of fence along three sides 
cost of fence along fourth side 
length of fence 
cost of fence building 
putting value of 
to find minimum value differentiating the equation
Hence the dimensions of the enclosure that is most economical to construct are 
and 
878.46 in. is your answer! Hope this helps!
Answer:
B: 4/5x -2y ≥ 3
Step-by-step explanation:
The first thing I always look for is the y-intercept which in this case is around -1.5 (-
). That will be your constant (b) in y = mx + b. Then calculate the slope which will be your m in the equation. Visually, I would estimate it is around 
. So now, your equation is y = x -1 
. Next we want to figure out what the inequality will be. The shaded part is underneath the line, which means that y must be less than where the line is. Therefore the inequality will be y ≤ x -1 .
Now in this question, the answers available are not in this form. The next step would be to multiply every part of the inequality by 2 (it is essential that all parts are multiplied) so that you get 2y ≤ 
x -3. The last step is to rearrange the inequality so that it matches the answers on the question.
3 ≤ x - 2y
x - 2y ≥ 3
Answer:
49
Step-by-step explanation:
∆ABC~ ∆XYZ
AB= 11 that is half of XY = 22
therefore XZ/2 = AC (base) = 32/2 = 16
and YZ /2 = BC(hypotenuse) = 44/2 = 22
(a= 11, b= 16, c= 22)
perimeter of a triangle
P = a+b+c
P= 11+16+22= 49
