Answer:
see explanation
Step-by-step explanation:
Let u = x² ( choice of variable is flexible ), then
4u² - 21u + 20 = 0 ← expressed as a quadratic
This can now be solved for u and converted back into terms of x
Here is the answer lmk if you need clarification
Multiply the decimal by 100. Then add the % sign.
Answer:
The point estimate for the mean is 29.5 miles per gallon and the standard deviation is 5.9
Step-by-step explanation:
The formula por the point estimate of the mean is:

And for the standard deviation:

So for the mean:

And for the standard deviation:
