Use the net to find the surface area of the cylinder

Step-by-step explanation:

To find the surface area of the cylinder you must apply the following proccedure:

- Calculate the surface area of the circles. They are equal, then you can multiply the surface area of a circle by 2:

Where r is the radius.

- Calculate the surface area of the rectangle:

Where l is the lenght and w is the width.

(The length is the circumference of the circle)

Then:

- Add the areas obtained.

The result is:

3 is greater then both of those numbers

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;