2 years ago

easy 20 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

scZoUnD [109]2 years ago

7 0

Answer:

The 3rd option is the answer

Step-by-step explanation:

Hope this helps:) Also cool naruto pfp look at mine lol

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Answer:

10-5g >80

Step-by-step explanation:

10-5g >80

This is the statment if u want it.

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If 1 pound of apples is 3 dollars, how many pounds can be purchased with 1 dollar?

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Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

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Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

$q=1-p=1-\frac{1}{2}=\frac{1}{2}$

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

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$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

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2 years ago

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Answer:

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Step-by-step explanation:

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