The inches per minute is .5 because its on a broken scale. but the first question is 2 inches
Answer:
The 85% confidence interval for the mean is between 5.5 and 5.7 fast food meals consumed per week.
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 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 5.6 - 0.08 = 5.52 = 5.5.
The upper end of the interval is the sample mean added to M. So it is 5.6 + 0.08 = 5.7.
The 85% confidence interval for the mean is between 5.5 and 5.7 fast food meals consumed per week.
The point-slope form:
We have the point (5, 18) and m = 2.
Substitute:
The slope-intercept form is y = mx + b
x-intercept:
substitute y = 0 to the equation of the function:
y-intercept:
substitute x = 0 to the equation of the function:
<h3>Answer:</h3><h3>x-intercept = -4</h3><h3>y-intercept = 8</h3>
Given
gas prices are now $3.75 and it up 10% from 6 months ago.
Find out how much were gas prices 6 months ago.
To proof
gas prices now = $3.75
let the gas price 6 month ago = x
gas price now is rise up 10% from 6 months ago
First write 10% in simpler form
= 0.1
Now the equation becomes
0.1x + x = 3.75
1.1x = 3.75
x = 3.41 (approx)
Thus gas prices 6 months ago be $ 3.41 (approx )
Hence proved
Answer:
I´m pretty sure it´s 2.(-3,6).
Step-by-step explanation: