The following graph shows the amount of snow that fell in denver, colorado in the winter of 1888-1889. how many inches of snow did denver receive during this period?

21 inches
21.3 inches
21.7 inches
22 inches

The answer is:

The second option, Denver received 21.3 inches of snow during the period from 1888 to 1889.

To know how many inches of snow did Denver receive, we need to sum each the number of inches received per year from 1888 to 1889.

So, from the graph, we have:

For Nov '88, 3 inches.

For Dec '88, 0.8 inches.

For Jan '89, 5.5 inches.

For Feb '89, 8.4 inches.

For Mar '89, 3.6 inches.

Now, adding the number of inches for each month/year, we have:

Hence, we have that Denver received a total of 21.3 inches for the 1888-1889 year period.

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answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,