Mathematics, 24.07.2019 09:00 lpssprinklezlps

The great blue hole is a cylindrical trench located off the coast of belize. it is approximately 1000 feet wide and 400 feet deep. about how many gallons of water does the great blue hole contain? round your answer to the nearest ten million gallons. (1 ft3≈7.48 gallons)

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The Great Blue Hole is a cylindrical trench located off the coast of Belize. It is approximately 1000 feet wide and 400 feet deep.

To find amount of gallons the Great Blue Hole contain we need to find the volume.

$Volume of cylinder = \pi r^2h$

Where 'r' is the radius and 'h' is the height.

Given : 1000 feet wide so radius = $\frac{1000}{2} = 500$

r = 500 and h= 400

$Volume of cylinder = \pi r^2h$

Plug in all the values

$Volume of cylinder = \pi (500)^2(400)$ = 314159265.4 ft^3

The units are in feet . convert it into gallons

1 ft^3=7.48 gallons

So 314159265.4 = 314159265.4 * 7.48= 2,349,911,305

Volume of cylinder = 2,349,911,305 gallons

Answer from: Quest

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction: this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology: the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion: the last is the discussion, this can be either by management people or persons who are all interested , etc.

Answer from: Quest

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq and the angle ∠orq are opposite, therefore:

$m\angle opq+m\angle orq=180\°\\\\m\angle opq+ (2x + 16)\°=180\°$

then, $m\angle opq+ (2x + 16)\°=180\°$ can be used to d to calculate the measure of ∠opq

Quadrilateral opqr is inscribed in circle n, as shown below. which of the following could be used to

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The great blue hole is a cylindrical trench located off the coast of belize. it is approximately 100...