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Rasek [7]
3 years ago
15

A rancher wants to build a rectangular pen with an area of 36 m2.

Mathematics
1 answer:
MakcuM [25]3 years ago
3 0

a).  If the width is 'w' and the area is 36, then the length is  36/w.
The amount of fencing required is 2 lengths + 2 widths (the perimeter).
That's  <em>2w + 72/w</em>  or  <em>(2/w)(w²+36)</em>  or<em>  2(w + 36/w) </em>.

b).  The shape that requires the minimum amount of fencing is a circle
with area = 36 m² .  The radius of the circle is about 3.385 meters, and
the fence around it is about 21.269 meters.

If the pen must be a rectangle, then the rectangle with the smallest perimeter
that encloses a given area is a square.  For 36 m² of area, the sides of the
square are each <em>6 meters</em>, and the perimeter needs 24 meters of fence to
enclose it.

I don't know how to prove either of these factoids without using calculus.


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Show your work and explain in a full sentence how 4 2/6 is equivalent to 3 8/6
Naddik [55]

Answer:

Multiply the whole numbers by their denominators and then add the product to their numerators. You will notice that they equal the same improper fraction.

Step-by-step explanation:

4 * 6 = 24.

24 + 2 = 26.

4 2/6 as an improper fraction equals 26/6.

3 * 6 = 18.

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3 8/6 as in improper fraction equals 26/6 as well.

So that is how they are equivalent.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

H_0: Mean = 30\\H_a: Mean >30

(Right tailed test)

Sample size = n=250

Sample mean = 30.45

Mean difference =30.45-30=0.45\\

Sample std dev s = 5

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Since population std deviation is not know we use t test

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3 years ago
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Step-by-step explanation:

See attached picture.

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When we do that, we get x² + 5x.  Subtracting this from the dividend, we get -9x + 11.

Now repeat the process.  Compare the highest term of the new dividend (-9x) to the highest term of the divisor (x).  We need to multiply by -9.

When we do that, we get -9x − 45.  When we subtract from the new dividend, we get 56.

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same thing as:
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Answer:

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Step-by-step explanation:

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