Answer:
The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.
Step-by-step explanation:
A confidence interval has the following format.
In which 
is the mean of the sample and M is the margin of error.
In this problem, we have that:
The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.
It is 20 because if u divide 78 by 3.75 ( 3 3/4 ) than equals 20.8
Answer:
Each tulip costs $1.50
Step-by-step explanation:
First, write an equation using the numbers given. It should look like this:
2.25(8) + 5x = 25.50
Next, multiply 2.25 by 8 to get: 18 + 5x = 25.50. Then, subtract 18 from both sides:
18 + 5x = 25.50
-18 -18
5x = 7.50
Finally, divide both sides of the equation by 5 to get $1.50
So, each tulip costs $1.50. Hope this helped!
Answer:
f(x) means y
Points 0,2 and 2,5 work with the equation
Step-by-step explanation:
f(x) means y
For 0, 2
y = 3/2(0) + 2
y = 2
For 2,5
y =3/2(2) + 2
y = 5
20.5. I think
Your welcome if right
Sorry if wrong
