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LuckyWell [14K]
3 years ago
10

What is the value of this expression when b=5? 6(2b-4)

Mathematics
2 answers:
Taya2010 [7]3 years ago
4 0
6(2(5) - 4)
6(10 - 4)
6(6)
36
castortr0y [4]3 years ago
3 0
Lets plug in the value and simplify using PEMDAS
6(2(5)-4)
6(10-4)
6(6)
36 is the value of this expression.
Give 5 stars and brainliest answer if this helped please!
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dolphi86 [110]

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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

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Required

Determine number of selection (if no restriction)

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^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}

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^{12}C_3 = 2*11*10

^{12}C_3 = 220\ ways

<em>There are 220 choices</em>

8 0
2 years ago
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