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Sphinxa [80]
2 years ago
6

How do I solve this? x/3 + x^2 + 2x^2 - x/3

Mathematics
1 answer:
Anna11 [10]2 years ago
3 0

Answer:

3x²

Step-by-step explanation:

\frac{x}{3}  + x^{2} +2x^{2} -\frac{x}{3} =

x^{2} +2x^{2} =

3x^{2}

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What is the correlation between salaries and computer skills? <br><br> * ANSWER FAST *
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Find the critical value of t for a sample size of 23 and a 99% confidence level. choose the correct value from below:
Kay [80]
We can find critical value by using t - table.
For using t - table we need degree of freedom and alpha either for two tailed test or one tailed test.
We can determine degree of freedom by subtracting sample size from one.
So in given question sample size is 23. So we can say degree of freedom(df) for sample size 23 is
df = 23 - 1= 22
Now we have to go on row for degree of freedom 22.

After that we need to find alpha either for two tailed test or one tailedl test.
Confidence level is 99%. We can convert it into decimal as 0.99.

So alpha for two tailed test is 100 - 0.99 = 0.01

Alpha for one tailed test is 0.01/2 = 0.005.

So we will go on column for 0.01 for two tailed test alpha or 0.005 for one tailed test alpha.
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8 0
3 years ago
In a study conducted to examine the quality of fish after 7 days in ice​ storage, ten raw fish of the same kind and approximatel
vesna_86 [32]

Question: The sample data and the scatter plot was not added to your question. See the attached file for the scatter plot.

Answer: Yes

Step-by-step explanation:

From scatter plot, it was discovered that there is a linear relationship between the two variables and both variables are quantitative.

Therefore, it appropriate to use the correlation coefficient to describe the strength of the relationship between​ "Time" and​ "Fish Quality"?

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kicyunya [14]

Answer:

-y=-2x+8\\y=2x-8

Step-by-step explanation:

To solve, first subtract 2x from both sides.

2x-y=8\\-y=-2x+8

You appear to want the solution for -y, so I've included it. Given that you also want the solution for y, divide both sides by -1.

-y=-2x+8\\y=2x-8

5 0
3 years ago
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