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user100 [1]
3 years ago
12

Find the difference. 9 3x − 4 2x2

Mathematics
1 answer:
pogonyaev3 years ago
4 0
We are tasked to determine the difference between the two expressions such as 9+3x and 4+2x². In order for us to solve this, we need to arrange the terms in descending order such as shown below:
(3x + 9) and 2x² + 4
Then, we need to perform subtraction in the same terms only such as 9 and 4:
3x +9  - (2x² + 4)
3x + 9 -2x² - 4
3x + 5 - 2x²
Then arrange in descending order such as:
2x² + 3x + 5

The answer is 2x²+3x+5.
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Step-by-step explanation:

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Calculate the mean,median,and mode of the following set of data. Round to the nearest tenth 10,1,10,15,1,7,10,1,6,13
lions [1.4K]
Let's start with the mean. 

To find the mean of a data set, add all the numbers, then divide by the number of numbers there are. 

10 + 1 + 10 + 15 + 1 + 7 + 10 + 1 + 6 + 13 = 74
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The mean is 7.4

Now for the median.

To find the median put all the numbers in order, then find the middle number.

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Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
8 0
3 years ago
Read 2 more answers
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lana [24]

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8 0
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