4 years ago

Find the center of the circle whose equation is (x - 8) 2 + (y + 2) 2 = 64.

Mathematics

2 answers:

mr Goodwill [35]4 years ago

5 0

8, -2 is the answer

SashulF [63]4 years ago

4 0

If given the equation, you need to take the number beside the x and y and change their signs to get your point:

x - 8 (Take the -8 and make it +8)

y + 2 (Take the +2 and make it -2)

Your point is (8, -2)

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In the triangles shown, ABC is dilated by a scale factor of to form XYZ. Given that mA = 45o and mB = 105o, what is mZ?

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<h3>How to determine the value of angle Z?</h3>

The given parameters are:

ABC is dilated to form XYZ

This means that the triangles ABC and XYZ are similar triangles and the corresponding angles are equal

So, we have the following angle equations

A = X

B = Y

C = Z

Also, we have

A + B + C = 180

Substitute C = Z in A + B + C = 180

A + B + Z = 180

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45 + 105 + Z = 180

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Hence, the value of angle Z is 30 degrees