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Illusion [34]
3 years ago
13

Hhhheeeeeeeeelllllllllllllllppppppppppppp

Mathematics
2 answers:
LiRa [457]3 years ago
6 0

Answer:

C

Step-by-step explanation:

lutik1710 [3]3 years ago
5 0
The answer is c I’m not sure but I believe it’s the right one
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A rectangular field on a farm is to be fenced in using the wall of the barn for one side and 200 meters of fencing for the other
vitfil [10]

Answer:

Rectangular area as a function of x :   A(x)  = 200*x  + 2*x²

A(max) = 5000 m²

Dimensions:

x = 50 m

l  = 100 m

Step-by-step explanation:

"x" is the length of the perpendicular side to the wall of the rectangular area to be fenced, and we call "l" the other side (parallel to the wall of the barn) then:

A(r) = x* l     and the perimeter of the rectangular shape is

P = 2*x + 2*l   but we won´t use any fencing material along the wll of the barn therefore

P  =  2*x + l       ⇒   200 = 2*x  + l      ⇒   l  = 200 - 2*x      (1)

And the rectangular area as a function of x is:

A(x)  = x * ( 200 - 2*x)  ⇒  A(x)  = 200*x  + 2*x²

Taking derivatives on both sides of the equation we get:

A´(x)  =  200 - 4*x     ⇒   A´= 0

Then    200 - 4*x  = 0     ⇒   4*x =  200   ⇒  x  = 50 m

We find the l value, plugging the value of x in equation (1)

l  = 200 - 2*x     ⇒ l = 200 - 2*50   ⇒  l = 100  m

A(max)  =  100*50

A(max)  = 5000 m²

3 0
3 years ago
Simplify. Consider all cases. |14−(x−6)|
yanalaym [24]

Answer:

20-x; -20+x; -20-x; 20+x

Step-by-step explanation:

|14-x+6|

|20-x|

20-x; -20+x; -20-x; 20+x

4 0
3 years ago
Read 2 more answers
A circle has a diameter of 16 cm. What is its circumference?
Olegator [25]

Answer:

the answer is 50.27 cm for your question

8 0
3 years ago
Luetta is shopping and find a $200 video game that is mark down by 5% how much will be taken off the price in dollars
viva [34]

Answer:

$10.00

Step-by-step explanation:

$200 x . 05 = $10.00

5 0
3 years ago
Read 2 more answers
Walter's savings account has a balance of $273. After 5 years, what will the amount of interest be at 5% compounded quarterly? a
lutik1710 [3]
The answer is 76.99 but rounded would make it 77.00 which is C
4 0
3 years ago
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