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3 years ago

Help plzAbcd(my choice is C)

Mathematics

1 answer:

-BARSIC- [3]3 years ago

8 0

The correct answer would be C.
Hope this helped!

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A block of glass has a mass of 22.5g and a volume of 9cm cubed.

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Answer:

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Step-by-step explanation:

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2 years ago

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A president, treasurer, and secretary, all di erent, are to be chosen from a club consisting of 12 people (whose names are I, J,

Ierofanga [76]

Answer:

There are 220 choices

Step-by-step explanation:

Given

$People = 12$

$Selection =3$ (President, Treasurer and Secretary)

Required

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This is calculated using the following combination formula:

$^nC_r = \frac{n!}{(n - r)!r!}$

Where

$n = 12$

$r= 3$

So, we have:

$^nC_r = \frac{n!}{(n - r)!r!}$

$^{12}C_3 = \frac{12!}{(12 - 3)!3!}$

$^{12}C_3 = \frac{12!}{9!3!}$

$^{12}C_3 = \frac{12*11*10*9!}{9!3!}$

$^{12}C_3 = \frac{12*11*10}{3!}$

$^{12}C_3 = \frac{12*11*10}{3*2*1}$

$^{12}C_3 = \frac{12*11*10}{6}$

$^{12}C_3 = 2*11*10$

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2 years ago

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Step-by-step explanation:

:)))

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Answer:

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Step-by-step explanation:

We will use the formula for rate of change (slope).

m=(y2-y1)/(x2-x1)

Pick any pair of x and y values.

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Simplify.

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HTH :)

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2 years ago