3 years ago

(3^2 +4) -6+4= {^ means power to...}

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

The awnser is 11
1. 3*3=9
2. 9+4=13
3. 13-6=7
4. 7+4=11

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Answer: a) 27.5, b) 5.33.

Step-by-step explanation:

Since we have given that

$\mu =27.5\\\\\sigma =71.5$

and n = 180

We need to calculate the sample mean and sample standard deviation.

So, the mean of the distribution of sample means is

$\mu = \mu_x=27.5$

The standard deviation of the distribution of sample means is

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Hence, a) 27.5, b) 5.33.

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Tcecarenko [31]

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3 years ago

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Help please! What is 438 x 934? I'm timed (gc for the school peeps sending this to them)

KatRina [158]

Answer:

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Step-by-step explanation:

I hope this helps.

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mariarad [96]

Answer:

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