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SVETLANKA909090 [29]
3 years ago
11

A rectangular field is to be enclosed by a fence and divided into two smaller fields by a fence parallel to one side . If 1200m

of fence are avaliable, find the dimensions of the field giving the maximus area.
Mathematics
1 answer:
ioda3 years ago
7 0

Answer:

Maximum dimensions of the field be 300m of length and width be 200 maximum area is 60000 m^{2}.

Step-by-step explanation:

2L + 3W = 1200

2L = 1200-3W  

Dividing both sides by 2

\mathrm{L}=(600-1.5 \mathrm{W}) \text { we know area of a rectangle is Length } \times \text { Width }

Replace L with (600-1.5W) A = W (600-1.5W) A = -1.5 W^{2} + 600W Axis of symmetry,  x=\frac{-b}{2 a} in this equation: a=-1.5, b=600 we get W = 200.

\text { So the length }=600-1.5 \times 200=300

\text { Therefore the maximum area of the field is }-1.5 \times 200^{2}+600 \times 200=60,000 \mathrm{m}^{2}

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Likurg_2 [28]
First we need to write the null and alternate hypothesis for this case.

Let x be the average number of text message sent. Then

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Alternate hypothesis: x > 100

The p value is 0.0853

If p value > significance level, then the null hypothesis is not rejected. If p value < significance level, then the null hypothesis is rejected.

If significance level is 10%(0.10), the p value will be less than 0.10 and we reject the null hypothesis and CAN conclude that:
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If significance level is 5%(0.05), the p value will be greater than 0.05 and we cannot reject the null hypothesis and CANNOT conclude that:
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7 0
3 years ago
Which equation and solution can be used to solve this problem?
maks197457 [2]

Answer:

D

Step-by-step explanation:

We need to convert these words into mathematical expressions:

- "Twenty-two less than a number"; "less than" indicates that we need to use subtraction, and since it's "twenty-two less than", we have: -22. Let's say the "number" is q. Then, we have -22 of q, which is q - 22.

- "is twenty-four"; "is" in math always means "equal", so we need an equal sign with 24 next to it: = 24

Put this altogether:

q - 22 = 24

The answer is thus D.

4 0
4 years ago
Read 2 more answers
5t 8=43 whats t.I WILL GIVE 50 POINTS AND IF YOU DONT RECEIVE THE POINTS TELL ME AND I WILL GIVE THEM.PLZ HELP MEEEEEEEEEEEEEEEE
lawyer [7]

==> I can't be sure of the equation.  There's a blank space
        between '5t' and '8', where an operation must be.
       I think the operation is more likely ' + ' (addition).  Brainly usually
       does show the ' - ' if it's subtraction, but goes blank if it's addition.
       Tell you what I'll do:  Since you sound so desperate, and you're being
       so generous with your points,  I'll show you how to figure it out both ways.

----------------------------------------

If it's subtraction:                 5t - 8 = 43

Add  8  to each side:              5t      = 51

Divide each side by  5 :            t     = 51/5

                                                 t     = 10 and 1/5

--------------------------------------------

If it's addition:                         5t + 8  =  43

Subtract  8  from each side:     5t        =  35

Divide each side by  5 :             t        =   7 

5 0
4 years ago
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These are the fees for sending a package by Media Mail:
Serga [27]
For first pound it is = $2.41
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Remaining = 7.99 - (2.41 + 2.46) = 7.99 - 4.87 = 3.12

Now, additional pounds = 3.12 / 0.39 = 8
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In short, Your Answer would be 15 pounds

Hope this helps!
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Susie is paying $555.26 every month for her $150,000 mortgage. If this is a 30 year mortgage, how much interest will she pay ove
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Answer:

$49,893.6

Step-by-step explanation:

$555.26/mo(30yr)(12 mo/yr) - $150000 = $49,893.6

5 0
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