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valina [46]
2 years ago
8

How do i solve 3000 divide by 12

Mathematics
2 answers:
neonofarm [45]2 years ago
6 0
I can’t really explain it but it’s 250
Greeley [361]2 years ago
3 0

Answer:

Not really sure how to explain it but the answer would be 250

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6th grade math ! Help me pleaseee
Maksim231197 [3]

Answer:

$9.99

Step-by-step explanation:

To find the cost of 1 pizza pie, divide the total cost by 5

49.95 ÷ 5 = $9.99

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Step-by-step explanation:

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An Epson inkjet printer ad advertises that the black ink cartridge will provide enough ink for an average of 245 pages. Assume t
Neko [114]

Answer:

35.2% probability that the sample mean will be 246 pages or more

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this question, we have that:

\mu = 245 \sigma = 15, n = 33, s = \frac{15}{\sqrt{33}} = 2.61

What the probability that the sample mean will be 246 pages or more?

This is 1 subtracted by the pvalue of Z when X = 246. So

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

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{246 - 245}{2.61}

Z = 0.38

Z = 0.38 has a pvalue of 0.6480.

1 - 0.6480 = 0.3520

35.2% probability that the sample mean will be 246 pages or more

4 0
3 years ago
The bathtub at the pet groomer’s shop is in the shape of a rectangular prism. The base of the tub has an area of 1,064 square in
Elena L [17]
I’m sure it’s B (15.960)..
5 0
3 years ago
I need help with this whats the answers on #1 i suck at geometry plz
sammy [17]
Z is congruent to q.
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3 years ago
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