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daser333 [38]
3 years ago
14

PB is a line segment on a number line. It has endpoints at -2 and 12. what is the coordinate of its midpoint

Mathematics
2 answers:
Vikentia [17]3 years ago
5 0
(-2 + 12)/2=

10/2=


5= answer
tatiyna3 years ago
3 0

The midpoint is halfway between the two ends. That means it is the average of the two values:

(-2+12)/2 = 5

5 is 7 above -2, and 7 below 12

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Step-by-step explanation:

The dog is leashed to a fixed point, the leash has a length of 20 ft, therefore he can rotate around that point at the maximum distance equal to the length of the leash. This pattern forms a circle, but there is an obstruction, which is the corner of the house. This obstruction takes an arc of the original circle, so the running area of the dog is the area of the whole circle minus the area of the arc formed by the corner of the house.

\text{dog's area} = \text{circle's area} - \text{arc's area}\\\\\text{dog's area} = pi*(20^2) - \frac{90}{360}*pi*(20^2)\\\\\text{dog's area} = \frac{270}{360}*pi*(400)\\\\\text{dog's area} = 942.477\text{ feet}^2

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Step-by-step explanation:

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