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3 years ago

Find the distance between the point (-3,5,8) and (8,12,2)

1 answer:

8 0

Learn how to find the distance between two points by using the distance formula, which is an application of the Pythagorean theorem. We can rewrite the Pythagorean theorem as d=√((x_2-x_1)²+(y_2-y_1)²) to find the distance between any two points.

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A number cube is rolled and a marble is selected at random from the bag at he right. Determine each probability.

Alenkasestr [34]

wheres the bag and everything else

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3 years ago

Y=6-4(2). What is the value of y=6-4x when x=2

Arturiano [62]

Answer:

y = -2

Step-by-step explanation:

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3 years ago

Order of Operations With Integers. Please help me solve and how you got the answer!! help, please!!

Nuetrik [128]

Answer:

Step-by-step explanation:

$\frac{(-2)(-3)(-4)}{-9 + (-3)}$

First, simplify the top and bottom separately:

$\frac{-24}{-12}$

Then, just divide:

$-24 / -12 = 2$

7 0

3 years ago

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.

Step-by-step explanation:

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 $\sigma = 4$

A sample of 25 wait times is randomly selected.

This means that $n = 25$

What is the standard deviation of the sampling distribution of the sample wait times?

$s = \frac{4}{\sqrt{25}} = 0.8$

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

4 0

3 years ago

Solve the following 32 divided by 4 + 4 x 8

gizmo_the_mogwai [7]

You need to use pemdas here to understand order of operations. So you need to multiply the 8 by the 4 to give 32, then add 4 to get 36. And now you can take the 32 and divide. So you get 36/32 or 9/8

3 0

3 years ago

Read 2 more answers