3n at n = 11 A) 8 B) 14 C) 7 D) 33

Mathematics

1 answer:

Aleks [24]3 years ago

3 0

<h3>Answer: D) 33</h3>

Explanation:

3n means "3 times n" where n is a placeholder for a number. Specifically, that number is 11. So,

3n = 3*n = 3*11 = 33

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(9, 19) (2, 16)<br> Write the coordinates as decimals or integers.

9966 [12]

Answer:

In decimal 0.428571428

Step-by-step explanation:

The slope = (y2 - y1)/(x2 - x1) y2 = 16, y1 = 19x2=2 and x1=9

The slope = (16 - 19)/(2 -9)

The slope = (-3)/(-7)

The slope = 0.428571428

So in decimal form the coordinates are going to be written as 0.428571428

Slope is the steepness of a line, it is the difference between the y coordinates divided by the difference in x coordinates.

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3 years ago

The sample variance of hourly wages was 10. what is the sample standard deviation?

lapo4ka [179]

<span>Standard deviation is defined as the quantity which expresses by how much the members of a group is different from the mean value for the group.
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The sample standard deviation with a <span>sample variance of hourly wages 10 will be $3.16.

Explanation:

</span><span>The standard deviation is the square root of the variance.
Therefore,
The square root of 10 dollars can be calculated as:

</span>√10 = $3.16

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3 years ago

How to simplify this

algol [13]

To simplify this, you would have to turn b^-2 into a positive exponent.
To do this, we have to flip b^-2, which would get rid of the negate from the exponent: -2

3a^4 b^-2 c^3 / b^-2

Then we get the answer:

3a^4 c^3
------------
b^-2

I have a picture to clarify!
I hope this helped, let me know if you don't understand! ^.^