3 years ago

Please answer the question in the picture

Mathematics

1 answer:

Vesnalui [34]3 years ago

6 0

The answer is A and C

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The mean is 35/5=7

v=((7-7)^2+(5-7)^2+(11-7)^2+(1-7)^2+(11-7)^2)/5

v=(0+4+16+36+16)/5

v=14.4

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3 years ago

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Mrrafil [7]

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Simplify expression x^2 - xy + 2x/ 2x, step by step please.

Papessa [141]

Answer:

x^2 - xy + 1

Step-by-step explanation:

x^2 - xy + 2x/2x

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x^2 - xy + 1

This is the furthest we can simplify this expression with the given information.

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2 years ago

20 POINTS! WILL MAKE BRAINLIEST

SVETLANKA909090 [29]

1.a sphere with a radius of three units

By definition, the volume of a sphere is:
$V = ( \frac{4}{3} ) (\pi) (r ^ 3)
$
Substituting values we have:
$V=(\frac{4}{3})(\pi)(3^3)$
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2.a cone with a diameter of twelve units and a height of three units

By definition, the volume of a cone is given by:
$V = \frac{1}{3} (\pi) (r ^ 2) (h)
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Substituting values we have:
$V = \frac{1}{3} (\pi) ((\frac{12}{2}) ^ 2) (3)
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Rewriting we have:
$V = (\pi) (6 ^ 2)

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3 years ago