Round 452,906 to the nearest ten thousand

Mathematics

2 answers:

ruslelena [56]3 years ago

7 0

450000 is the answer, if you have trouble rounding again go to the website everydaycalculation.com

tatuchka [14]3 years ago

6 0

460,000 or if you want it to the nearest hundred thousand it would be 500,000

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How do you do a 3-step algebra equation?

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A line with slope 1/2 passes through the point (8, -1). What is the equation of this line?

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There are 2.54 centimeters in an 1 inch. how many centimeters are 17 inches

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3 years ago

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The weight of an adult swan is normally distributed with a mean of 26 pounds and a standard deviation of 7.2 pounds. A farmer ra

Snezhnost [94]

Let $X$ denote the random variable for the weight of a swan. Then each swan in the sample of 36 selected by the farmer can be assigned a weight denoted by $X_1,\ldots,X_{36}$ , each independently and identically distributed with distribution $X_i\sim\mathcal N(26,7.2)$ .

You want to find

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Recall that if $X\sim\mathcal N(\mu,\sigma)$ , then the sampling distribution $\overline X=\displaystyle\sum_{i=1}^n\frac{X_i}n\sim\mathcal N\left(\mu,\dfrac\sigma{\sqrt n}\right)$ with $n$ being the size of the sample.

Transforming to the standard normal distribution, you have

$Z=\dfrac{\overline X-\mu_{\overline X}}{\sigma_{\overline X}}=\sqrt n\dfrac{\overline X-\mu}{\sigma}$

so that in this case,

$Z=6\dfrac{\overline X-26}{7.2}$

and the probability is equivalent to

$\mathbb P\left(\overline X>\dfrac{1000}{36}\right)=\mathbb P\left(6\dfrac{\overline X-26}{7.2}>6\dfrac{\frac{1000}{36}-26}{7.2}\right)$
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3 years ago

solve and check: (1)/(x 3) = (x 10)/(x − 2) from least to greatest, the solutions are x = ? and x = ?

SCORPION-xisa [38]

If you would like to solve 1/(x + 3) = (x + 10)/(x - 2), you can do this using the following steps:

<span>1/(x + 3) = (x + 10)/(x - 2)
</span>1 * (x - 2) = (x + 10) * (x + 3)
x - 2 = x^2 + 3x + 10x + 30
0 = x^2 + 13x + 30 - x + 2
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The correct result would be x = -8 and x = -4.

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3 years ago

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