Find the surface area of a conical grain storage tank that has a height of 41 meters and a diameter of 16 meters. round the answer to the nearest square meter.

The surface area of a conical grain storage tank that has a height of 41 meters and a diameter of 16 meters is

Explanation:

Height of the conical grain storage tanks =41 m

Diameter of the conical grain storage tank=16 m

Hence radius = diameter/2=8 m

Suppose h is height and r is radius

Formula used:  

Surface area of a cone= A

A=

= πr(l+r)

Where

=

Putting the values

=

=1250.9368

=

is the surface area of a conical grain storage tank

135 is your answer

step-by-step explanation:

try 180 times three then divide that number by 4 (sides) to get your answer. im glad to : )

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;