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Furkat [3]
3 years ago
11

Simplify where possible 3a - 4a 6a

Mathematics
1 answer:
Damm [24]3 years ago
4 0
The answer is 5a. 3a- 4a is -1 then you add -1 and 6, and your outcome comes out to be 5a.
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I am in my kitchen if and only if i am at home 

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One number is 9 more than another. if the sum of the two numbers is 163​, find the two numbers.
tiny-mole [99]
I think that one number is 77 and the other is 86. 77 + 9 is 86. 86 +77 is 163.
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Shannon feeds her cat twice a day. In the morning, she feeds her cat one can of cat food. In the evening, she feeds her cat one
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A farmer plans to enclose two adjacent rectangular pens against a barn wall (see figure).
Licemer1 [7]

Answer: Let's assume that the pig pens need to be fenced in the way shown in the diagram above.

Then, the perimeter is given by

4

x

+

3

y

=

160

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4

x

=

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−

3

y

x

=

40

−

3

4

y

The area of a rectangle is given by

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=

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, however here we have two rectangles put together, so the total area will be given by

A

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A

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(

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2

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2

Now, let's differentiate this function, with respect to y, to find any critical points on the graph.

A

'

(

y

)

=

80

−

3

y

Setting to 0:

0

=

80

−

3

y

−

80

=

−

3

y

80

3

=

y

x

=

40

−

3

4

×

80

3

x

=

40

−

20

x

=

20

Hence, the dimensions that will give the maximum area are

20

by

26

2

3

feet.

A graphical check of the initial function shows that the vertex is at

(

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2

3

,

1066

2

3

)

, which represents one of the dimensions that will give the maximum area and the maximum area, respectively.

Hopefully this helps!

Step-by-step explanation: hope this helps

3 0
3 years ago
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finlep [7]

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