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Nataly_w [17]
3 years ago
5

The diameter of a circle is 16 inches what is the radius of the circle?

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0

Answer:

8 inches

Step-by-step explanation:

The diameter of a circle is two times the radius of the circle, and radius is half as long as the diameter of the same circle.

P.S., I'm not sure why the answers are in feet, they should be in inches!

Please mark Brainliest! :)

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You run 6 miles in one hour at this rate how long will it take you to run a marathon approximately 26 mile
Shalnov [3]
Divide 26 by 6 to get 4.33. Divide 60 by 3 to get 20.

It will take approximately 4 hours and 20 minutes to run the marathon.
5 0
3 years ago
Jumbo eggs in Australia, on average, are supposed to weigh 68g. Margot is in charge of a quality control test that involves weig
Andrej [43]

Answer:

0.9987 = 99.87% probability that the mean weight of 4 eggs in a package is less than 68.5g

Step-by-step explanation:

To solve this question, we use the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be 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.

Mean weight of 67g and a sample standard deviation of 1g.

This means that \mu = 67, \sigma = 1

Sample of 4

This means that n = 4, s = \frac{1}{\sqrt{4}} = 0.5

What is the probability that the mean weight of 4 eggs in a package is less than 68.5g?

This is the pvalue of Z when X = 68.5. So

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

By the Central Limit Theorem

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

Z = \frac{68.5 - 67}{0.5}

Z = 3

Z = 3 has a pvalue of 0.9987

0.9987 = 99.87% probability that the mean weight of 4 eggs in a package is less than 68.5g

6 0
3 years ago
Read 2 more answers
-8=2/5t solve for t please!
Natali [406]
Your answer here is t = -20

-8 = 2/5t
Equation

2/5 = 0.4
2 divided by 5 is 0.4

-8 / 0.4 = -20
Divide -8 by 0.4 which is -20
5 0
3 years ago
What is the approximate mark up percentage rate before M equals $1740 marked up from P equals $19,422
maks197457 [2]

Answer:

the markup is 1016%

Step-by-step explanation:

3 0
3 years ago
It takes Benjamin 28 minutes to mow 2 Lawns assuming the Lawns are the same size and Benjamin works at the same speed about how
Ivan
28min/2lawns = 14min per lawn. Then 14min * 5 lawns = 70min
4 0
3 years ago
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