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alexgriva [62]
3 years ago
8

Can someone help me? I do not understand. She did NOT teach us this??

Mathematics
1 answer:
Flauer [41]3 years ago
7 0
I think u just subtract 35° from 130° and that should be the angle of x
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Step-by-step explanation:

The center of a circle with 2 end points of a di diameter is the midpoint of the two endpoints.

The formula needed to find the minpoints is

(x,y) = (x2 + x1)/2, (y2 + y1)/2

x2 = 3

x1 = 3

y2 = 0

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midpoint = (3 + 3)/2, (0 - 7)/2

midp[oint = 3,-3.5

The midpoint is the center of the circle. Observe that the signs get changed when entering the values for (x,y)

So far what you have is (x - 3)^2 + (y + 3.5)^2 = r^2

To determine r^2 you need only take the distance from the center to oneof the endpoints.

r^2 = (3 - 3)^2 + (3.5 - 0)^2

r^2 = 3.5^2

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Answer: (x - 3)^2 + (y + 3.5)^2 = 12.25

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Answer:

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The volume of a cone =πr²h/3

Where

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Volume of a cone = π × 10² × 20/3

Volume of a cone = 2094.3951 cm³

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