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2 years ago

12

Kendra found two worms in the yard and measured them with a ruler. One worm was 7 2/3 inches long. The other worm was 2 1/6 inch

es long. How much longer was the longer worm?
Write your answer as a fraction or as a whole or mixed number.

1 answer:

Black_prince [1.1K]2 years ago

3 0

Answer:

5½ inches

Step-by-step explanation:

7⅔ - 2 1/6 = 7 4/6 - 2 1/6 = 5 3/6 = 5½

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2 years ago

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kramer

Answer:

$P(x \le 21) = 0.69146$

Step-by-step explanation:

The missing parameters are:

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$\mu = 20$ --- population mean

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Required

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First, calculate the sample standard deviation

$\sigma_x = \frac{\sigma}{\sqrt n}$

$\sigma_x = \frac{16}{\sqrt {64}}$

$\sigma_x = \frac{16}{8}$

$\sigma_x = 2$

Next, calculate the sample mean $\bar_x$

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So:

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So, we have:

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$x = \frac{x - \mu}{\sigma}$

$x = \frac{21 - 20}{2}$

$x = \frac{1}{2}$

$x = 0.50$

So, we have:

$P(x \le 21) = P(z \le 0.50)$

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$P(z \le 0.50) = 0.69146$

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zlopas [31]

Answer:

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Step-by-step explanation:

Let the original water level is x.

<u>Use below equation to find its value:</u>

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The correct answer is 77 degrees

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2 years ago

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