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3 years ago

Compute the permutation.

1 answer:

3 0

This is a question of permutation, where;

There is only one farmer who who has to plow four field. The farmer can choose to start and end with any field. Since ordering is critical, permutation theory comes into play.

Orders of plowing = nPr = n!/(n-r)!

Where
n = 4
r = 1
Substituting;
Orders of plowing = 4P1 = 4!/(4-1)! = 4

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2 years ago

Some farmers use a circular irrigation method. An irrigation arm acts as the radius of an irrigation circle. How much land is co

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Answer:

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Step-by-step explanation:

<u>Area of the circle</u>

Being r the radius of a circle, its area can be calculated as follows:

$A=\pi\cdot r^2$

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3 years ago

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2 years ago

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Answer: Length of shorter tree = 7.2 feet .

Step-by-step explanation:

Given : Height of two trees as 50 feet and 20 feet.

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Corresponding sides of similar triangles are proportional.

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2 years ago

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Answer:

Step-by-step explanation:

im pretty sure you just have to do 18*4

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2 years ago

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