3 years ago

Assume that uâv=1uâv=1, â¥uâ¥=2â¥uâ¥=2, and â¥vâ¥=1â¥vâ¥=1. what is the value of 2uâ(10uâ6v)2uâ(10uâ6v)?

1 answer:

5 0

Go to israel they might have the answers then go to the pyramid in egypt they might have the hirogliphics of that symbol

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A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who

dezoksy [38]

Answer:

The sample size is $n =68$

Step-by-step explanation:

The population proportion is $\^ p = 0.50$

The margin of error is $E = 0.1$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 )$

=> $n =68$

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3 years ago

What type of solution do the two lines show?

Colt1911 [192]

Answer:

No solution.

Step-by-step explanation:

The two lines are parallel and will never meet. Therefore, they have no solution.

7 0

3 years ago

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Easy math question please help

kondaur [170]

Answer:

Step-by-step explanation:

2x-3=7

Add 3 to both sides:

2x=10

Divide both sides by 2:

x=5

Hope this helps!

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3 years ago

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30 is 50% 0f what number

liubo4ka [24]

30 is 50% of 60 because 50% is a half

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3 years ago

Sam earned $130 last week. Jay earned $150 last week. They combined their money and decided to donate 1/5 of their total amount

defon

Jay's claim is false. They would have $156.8 left which is 56% of their original combined total.

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3 years ago