Answer:
Option A. ![C(d)=25d+12](https://tex.z-dn.net/?f=C%28d%29%3D25d%2B12)
Step-by-step explanation:
Let
d -----> the number of days
C(d) -----> the total cost
we know that
The linear equation in slope intercept form is
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
where
m is the rate or slope of the linear function
b is the y-coordinate of the y-intercept
In this problem we have that
![C(d)=md+b](https://tex.z-dn.net/?f=C%28d%29%3Dmd%2Bb)
The slope of the linear equation is equal to the charge of $25 per day to board dogs
so
![m=25\frac{\$}{day}](https://tex.z-dn.net/?f=m%3D25%5Cfrac%7B%5C%24%7D%7Bday%7D)
The y-intercept is the value of y when the value of x is equal to zero
In this problem the C-intercept is the total cost when the number of days (d) is equal to zero
The C-intercept is equal to the cost of the bath $12
so
![b=\$12](https://tex.z-dn.net/?f=b%3D%5C%2412)
substitute the values
![C(d)=25d+12](https://tex.z-dn.net/?f=C%28d%29%3D25d%2B12)
Answer:
pretty sure its -2,3 :)
Step-by-step explanation:
Answer:
parallel line y = -1/2x + 12
perpendicular line y = 2x + 2
Step-by-step explanation:
slope = -1/2
perpendicular slope = 2
y = mx + b
10 = -1/2(4) + b
10 = -2 + b
12 = b
y = -1/2x + 12
10 = 2(4) + b
10 = 8 + b
2 = b
y = 2x + 2
Answer:
A. We are 99% confident that the interval from 4.1 to 5.6 actually does contain the true value of population mean.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
99% confidence interval means that we are 99% sure that this interval contains the population mean.
Interval between 4.1 and 5.6.
So the correct answer is given by option A.
Answer: 0.00065062
Step-by-step explanation:
i used a calculator ✌️