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guajiro [1.7K]
3 years ago
8

Explain how "9+10=21"

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0

Answer: it doesnt need an explanation, it just does.

Step-by-step explanation: im not stoopid

Korvikt [17]3 years ago
7 0

Answer:

this is a stupid question

Step-by-step explanation:

ur just making fun of the kid who said that 9 + 10 = 21

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A crew is made up of 8 men; the rest are women. If 32 % of the crew are men, how many people are in the crew?
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3 years ago
Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

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Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

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3 years ago
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Solve the equation by completing the square.
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