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3 years ago

Who know how to do this??

Mathematics

2 answers:

Bumek [7]3 years ago

5 0

Answer:

Step-by-step explanation:

With some research I found that the medians (QK, RJ, and SI) are broken into 2:1 ratios.

So what this means is that QD is twice as long as DK.

QD = 2DK

QD = 2 * 6.5

QD = 13

Paraphin [41]3 years ago

3 0

Find what the whole line is equal to then take 6.5 and subtract it from the whole thing

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In a random sample, 10 students were asked to compute the distance they travel one way to school to the nearest tenth of a mile.

elixir [45]

Answer:

Mean = 3.12, Variance = 3.324, Standard deviation = 1.8232

Step-by-step explanation:

Total number of students = 10 students.

Given data, 1.1, 5.2, 3.6, 5.0, 4.8, 1.8, 2.2, 5.2, 1.5, 0.8

To find the mean, at first we have to take the sum of all given data and then divide with the number of students.

Let the data is X, = 1.1, + 5.2, + 3.6, + 5.0, + 4.8, + 1.8, + 2.2, + 5.2, + 1.5, + 0.8 = 31.2

Mean = 31.2 / 10 = 3.12

$\text{Standard deviation, S} = \sqrt{\frac{\sum x^{2} - \left [ (\sum x)^{2}/n \right ]}{n-1}} \\S = 1.8232 \\\rm The \ Variance = S^{2} = 3.324$

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3 years ago

Which fraction is equal to 0.5 7

Andrei [34K]

14.25/25 I hope this helps

5 0

3 years ago

X÷2+4 greater than 7

denpristay [2]

I’m am almost sure it’s true it should look like this X
__ > 7
2+4

8 0

4 years ago

I have 183 feet of fencing. The length of the court is 32 feet more than the width. One of the shorter sides will be 5 feet shor

Aliun [14]

Okay so the total is 183. So we can say 183 =
Let's call the width (the longer side) x.
We know that we have x, x + 32, and x - 5.
We can say 183 = x + (x + 32) + (x - 5).
Let's solve for x.
x = 52.
So we know the length is 84 feet, the shorter side has 47 feet, and the longer side has 52 feet.

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3 years ago

Complete the steps to simplify^5√4 x √2 . Rewrite using rational exponents.

ozzi

The answer is 2^(9/10). I did it assuming with the ^5 you mean the 5th root of 4

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3 years ago

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