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kow [346]
3 years ago
6

If the formula pictured below is used to find the mean of the following sample, what is the value of N?

Mathematics
2 answers:
Pie3 years ago
8 0

Answer:

Choice D). 8

Step-by-step explanation:

The value on n is simply the number of values or the size of the sample data. In our case, we have a total of 8 data values. The value of n will thus be 8

creativ13 [48]3 years ago
8 0

Answer:

Choice D is correct answer.

Step-by-step explanation:

We have given a list of values.

2,63,88,10,72,99,38,19

We have to find mean and value of n.

n is the total number of values.

Hence, n = 8

Formula to find mean is :

Mean = sum of values / number of values

Sum of values = 2+63+88+10+72+99+38+19 = 391

Number of values = 8

Mean = 391/8

Mean = 48.875

Mean of the following sample is 48.875

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Answer:

Width=20 feet

Since Length=Width=20 feet, the rectangle is a Square.

Step-by-step explanation:

Area, A=40w - w^2

To determine the width of the rectangle that gives the maximum area, we take the derivative of A and solve for its critical point.

A'=40 - 2w\\$When A'=0\\40-2w=0\\40=2w\\w=20 feet

The width of the rectangle that gives the maximum area =20 feet.

Perimeter of a rectangle=2(l+w)

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Since the length and width are equal, the special type of rectangle that produces this maximum area is a Square.

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3 years ago
In a 30 degree, 60 degree, 90 degree triangle shortest side is 15. Find the lengths of the other sides. Will give brainliest for
iren2701 [21]

Answer:

The ratio of sides in a 30-60-90 triangle is 1:√3:2. Since the shortest side is the 1 in this case the other lengths are 15√3 and 30.

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3 years ago
A pencil costs .27 and a pen costs .32. You buy six pencils and the total cost is 4.18 How many pens did you buy?
skelet666 [1.2K]

Answer:

8 pens

Step-by-step explanation:

<h2><u>Finding the number of pens bought </u></h2>

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6 * 0.27 + x * 0.32 = 4.18

1.62 + 0.32x = 4.18

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natulia [17]

Answer:

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Step-by-step explanation:

Let x = the number of boys

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This means that there are 5 boys. Since girls = x + 4, 5 + 4 = 9. There are 5 boys and 9 girls.

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