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2 years ago

10

URGENT!!!!!!

1 answer:

patriot [66]2 years ago

6 0

Answer:426.6

Step-by-step explanation:

.138 x =.088(x - 69.7) + .394(69.7)

.138 x - .088x = 69.7(.394 - .088)

.05x = 21.3282

/

x = 426.564

This rounds to x = 426.6

<h2><u>Give me brainliest</u></h2>

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What is the variance of the following data? If necessary, round your answer to two decimal places. 17, 13, 13, 22, 11, 20

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Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:

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3 years ago

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3 years ago

A box with a rectangular base and open top must have a volume of 128 f t 3 . The length of the base is twice the width of base.

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Answer:

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Step-by-step explanation:

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$H = \frac{128}{2W^2}$

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So, we have:

$A = LW + 2(WH + LH)$

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$Cost = 9 * LW + 6 * 2(WH + LH)$

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Take cube roots

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$H = 4$

Hence, the dimension that minimizes the cost is:

$Width = 4ft$

$Height = 4ft$

$Length = 8ft$

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3 years ago