A right triangle has legs that are 11 inches and 13 inches long what is the area of the triangle

Mathematics

1 answer:

blsea [12.9K]2 years ago

7 0

143 the i answer is 143

hope this helps

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A stack of nickels has a mass of 45g. There are 9 nickels in the stack. What is the mass of one nickel?

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2 years ago

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If m=3 = what is the value of 3m?

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Answer: 9

Step-by-step explanation:

M=3 and the equation is 3m so your going to multiply. So the equation would be 3*3 and 3*3=9 so that's your answer

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3 years ago

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Answer:

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Step-by-step explanation:

first you make the demoninators the same so 3*4=12

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It is known that the length of time that people wait for a city bus to arrive is right skewed with mean 6 minutes and standard d

Natali [406]

Answer:

The standard deviation of the sampling distribution of the sample wait times is of 0.8 minutes.

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Central Limit Theorem

The Central Limit Theorem establishes 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. Otherwise, the mean and the standard deviations holds, but the distribution will not be approximately normal.

Standard deviation 4 minutes.

This means that $\sigma = 4$