Answer:
13/5
Step-by-step explanation:

Answer: 8.3
Step-by-step explanation:
To find the variance, you want to find the mean of the data.

Now that we have the mean, we find the difference between each data point and the mean.
3-5=-2
3-5=-2
8-5=3
1-5=-4
9-5=4
6-5=1
With the difference, you square each and find the average.
(-2)²=4
(-2)²=4
3²=9
(-4)²=16
4²=16
1²=1

The variance is 8.3.
When putting polynomials in standard form we arrange them from the term with the highest power to the lowest power.
This polynomial would be arranged: -3x^3-5x^2+8x-5
The degree of a polynomial is the power of the highest term so the degree of this polynomial is three.
Answer: 49.
It's 49 minutes
Step-by-step explanation:
I don't feel like explaining. It's 49 minutes.
1=-8 l
4=100 l
7=? l
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