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Evgen [1.6K]
3 years ago
15

Help me please! And quick! It's 7th grade level math...

Mathematics
2 answers:
LekaFEV [45]3 years ago
5 0

I don't know SORry LOL_

Mademuasel [1]3 years ago
4 0

Answer:

Number 5 is 10 pencils left in total(5 red, 5 blue) with 50 percent probability of getting red or blue. Number 6 is 9 left total (4 red, 5 blue) with a 44 percent probability of choosing a red one, 56 percent probability of choosing a blue one

Step-by-step explanation:

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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

.

4

x

=

160

−

3

y

x

=

40

−

3

4

y

The area of a rectangle is given by

A

=

L

×

W

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

A

=

2

×

L

×

W

.

A

=

2

(

40

−

3

4

y

)

y

A

=

80

y

−

3

2

y

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

(

26

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
Fran has a monthly income of $2940, and budgets 9% of that amount for groceries.
notsponge [240]

Answer: $265

Step-by-step explanation: Fran has a monthly income of $2940, and she budgets 9% of it for groceries. 9% of $2940 is $265 dollars.

Hope this helps!

7 0
2 years ago
$30 bat; 15% discount
Vladimir [108]
Multiply $30 by 0.15 to find the amount discounted:
30x0.15=$4.50

Now subtract 4.5 from 30 to find the final cost of the bat.
30-4.5= $25.50
8 0
3 years ago
Pls help extra points and mark brainlist
vagabundo [1.1K]

Answer:

e

Step-by-step explanation:

it’s adding a number by itself the same as multiplying it by 2

8 0
3 years ago
Read 2 more answers
In △JKL, ​ LO=104 cm ​. What is the length of NO¯¯¯¯¯¯? Enter your answer in the box.
Westkost [7]

Answer: The answer is 52 cm




8 0
3 years ago
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