Answer:
a) 0.125
b) 0.015635
c) 0.00000095367431640625
Step-by-step explanation:
a)
b)
c)
Given the line below.
1 answer:
Answer:
The equation of the line in point slope form is equal to
Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
step 1
Find the slope
The formula to calculate the slope between two points is equal to
we have
(-2,-2) and (2,2)
substitute the values
step 2
Find the equation of the line in point slope form
we have
substitute the values in the formula
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Answer:
The 80% confidence interval for the mean per capita income in thousands of dollars is between $21.3 and $21.9.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 21.6 - 0.3 = $21.3.
The upper end of the interval is the sample mean added to M. So it is 21.6 + 0.3 = $21.9.
The 80% confidence interval for the mean per capita income in thousands of dollars is between $21.3 and $21.9.
Answer:
The answer to your question is below
Step-by-step explanation:
f(x) = 27/x² - 16x
Evaluate the function when x:
x f(x)
-4 27/(-4)² - 16(-4) = 27/16 + 64 = 65.69
-3 27/(-3)² - 16(-3) = 27/9 + 48 = 51
- 2 27/(-2)² - 16(-2) = 27/4 + 32 = 38.75
- 1 27/(-1)² - 16(-1) = 27/1 + 64 = 91
1 27/(1)² - 16(1) = 27/1 - 16 = 11
2 27/(2)² - 16(2) = 27/4 - 32 = -25.25
3 27/(3)² - 16(3) = 27/9 - 48 = -45
See the graph below
