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2 years ago

A book is 21 centimeters long, how long is this in meters?

Mathematics

1 answer:

Gnesinka [82]2 years ago

4 0

Answer:

0.21 meters :)

Step-by-step explanation:

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2 years ago

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3 years ago

Find z if X=27, μ=20, and α=3.4. Round to the nearest hundredth if necessary.

Scrat [10]

Answer:

A. $Z=2.06$

Step-by-step explanation:

We want to find the Z-score of $X=27$ if the population mean is $\mu=20$ ,and the population standard deviation is $\sigma=3.4$ .

We use the formula:

$Z=\frac{X-\mu}{\sigma}$

We substitute the values to obtain:

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3 years ago

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Reika [66]

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2 years ago

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balandron [24]

Answer:

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Step-by-step explanation:

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2 years ago