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3 years ago

Find the mean 10,12,17,14,20,27,24,28,28

Mathematics

2 answers:

hammer [34]3 years ago

6 0

Hi Kimberlys969pdrfzz,

Question:

Find the mean

Mean - "The mean is the average of the numbers: a calculated "central" value of a set of numbers. To calculate it: add up all the numbers, then divide by how many numbers there are."

Solution:

$\frac{10 + 12 + 17 + 14 + 20 + 27 + 24 + 28 + 28}{9} = \frac{180}{9} = 20$

Answer:

Mean = 20

Hope This Helps!

Svetlanka [38]3 years ago

3 0

10 + 12 + 17 + 14 + 20 + 27 + 24 + 28 + 28 = 180/9 = 20

mean: 20

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Here we are given that , the Value of

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And we need to find the prove that ,

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We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

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$xy =\dfrac{648}{162}$

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