Answer:
It would be (-1,-3)
Step-by-step explanation:
All you have to do is divide your point by 4, since it's a fractions. If it's not, multiply.
-4 / 4 = -1
-12 / 4 = -3
Answer:
The margin of error for a confidence interval for the population mean with a 90% confidence level is 0.53 hours.
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.
In this quesstion:
![\sigma = 1.5, n = 22](https://tex.z-dn.net/?f=%5Csigma%20%3D%201.5%2C%20n%20%3D%2022)
So
The margin of error for a confidence interval for the population mean with a 90% confidence level is 0.53 hours.
Answer:
-9 < x
Step-by-step explanation:
-3x - 7 < 20
+ 7 + 7
___________
-3x < 27
___ ___
-3 -3
x > -9 [Whenever you <em>divide</em><em> </em>or <em>multiply</em><em> </em>by a negative, reverse the inequality symbol.]
The above answer is written in reverse, which is the exact same result.
I am joyous to assist you anytime.
Y intercept means the y-coordinate of the point where the graph crosses the y-axis.
Given equation is:
![-2x+6y=5](https://tex.z-dn.net/?f=-2x%2B6y%3D5)
Let x be 0, as at the y-intercept point, the x-coordinate of that point is always 0.
![-2(0)+6y=5](https://tex.z-dn.net/?f=-2%280%29%2B6y%3D5)
![6y=5](https://tex.z-dn.net/?f=6y%3D5)
y=![\frac{5}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B6%7D)
Slope-intercept form is y = mx + b
where m is the slope of the line and b is the y-intercept of the line {the number without a variable}
-2x+6y = 5
6y = 2x+5
y= ![\frac{2x}{6}+\frac{5}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B6%7D%2B%5Cfrac%7B5%7D%7B6%7D)
Hence, slope is ![\frac{2}{6}or\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B6%7Dor%5Cfrac%7B1%7D%7B3%7D)
Answer:
look at picture
Step-by-step explanation:
x: student tickets
y: adult tickets