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myrzilka [38]
3 years ago
9

Find the value of x. Give reasons to justify your answer.

Mathematics
1 answer:
pychu [463]3 years ago
7 0
6x+4x=180°
10x=180°
180/10x
x=18
6x and 4x are alternate interior angles and they can be added to each other to create a product of 180.
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Answer:

(x+4)^2+(y-6)^2=81

Step-by-step explanation:

We want to find equation of a circle with center (-4,6) and radius 9cm.

The equation of a circle with center (h,k) and radius r units is given by;

(x-h)^2+(y-k)^2=r^2

We substitute the radius and the center to obtain;

(x+4)^2+(y-6)^2=9^2

The required equation is:

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3 years ago
A Freight train is traveling 30 miles per hour. An automobile starts out from the same place 1 hour later and overtakes the trai
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