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artcher [175]
3 years ago
5

"Does anybody need help?!"

Mathematics
2 answers:
eduard3 years ago
8 0
What do you mean by that I’m a bit confused
erica [24]3 years ago
7 0
Yes i need help with my math Homework
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Evan wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence
pentagon [3]

Answer:  A.   A=(1000-2w)*w      B. 250 feet

C.  125 000 square feet

Step-by-step explanation:

The area of rectangular is A=l*w    (1)

From another hand the length of the fence is 2*w+l=1000        (2)

L is not multiplied by 2, because the opposite side of the l is the barn,- we don't need in fence on that side.

Express l from (2):

l=1000-2w

Substitude l in (1) by 1000-2w

A=(1000-2w)*w        (3)   ( Part A. is done !)

Part B.

To find the width w  (Wmax) that corresponds to max of area A   we have to dind the roots of equation (1000-2w)w=0  ( we get it from (3))

w1=0  1000-2*w2=0

w2=500

Wmax= (w1+w2)/2=(0+500)/2=250 feet

The width that maximize area A is Wmax=250 feet

Part C.   Using (3) and the value of Wmax=250 we can write the following:

A(Wmax)=250*(1000-2*250)=250*500=125 000 square feets

3 0
3 years ago
It would be enchanting if you could help me out on this question, pease and crackers. thank you!(don't mind my weird language lo
Alina [70]

Answer:

615.44cm

Step by Step Answer:

A=πr^{2}=π·14^{2}≈615.75216

5 0
3 years ago
A rectangle has length X +5 and width X +4 if the perimeter of the rectangle is 42 m what are the length and width of the rectan
Maru [420]
The perimeter is 2(length) + 2(width), so 2(x+5) + 2(x+4) = 42 m. In solving for x, you find 6. Plug 6 back into your length and width where x originally was, and you find your length to be 11m, and your width to be 10m. Hope this helps!
6 0
3 years ago
Read 2 more answers
80Divided by 3 plz help
mojhsa [17]

Answer:

Your answer is 26.667

hope this helps

8 0
3 years ago
The product of two factors is 7,200.if one of the factors is 90,what is the other factor?
Eddi Din [679]

Ok. Something times 90 = 7200.


Let something = x


90x = 7200


Divide both sides by 90.


90x/90 = 7200/90


x = 80


The other factor is 80.


5 0
3 years ago
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