a cone has a diameter of 8 centimeters and a height that is 4 times the diameter. using 3.14 for pl, which of the following can be used to calculate
volume of the cone?

Volume of cone is .

Step-by-step explanation:

Given:

Diameter of Cone = 8 cm

Now we know that radius is half of diameter.

radius =

Also Given:

height that is 4 times the diameter.

So we can say that;

Height =

We need to find the volume of the cone.

Solution:

Now we know that Volume of the cone is given by one third times π times square of radius times height.

framing in equation form we get;

Volume of the cone =

Hence Volume of cone is .

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;