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frosja888 [35]
2 years ago
13

1 point What is the center and radius of a circle with equation (x-4)2 + (y - 2)2 = 4

Mathematics
1 answer:
abruzzese [7]2 years ago
3 0

Step-by-step explanation:

Find the Center and Radius (x-4)^2+y^2=4

(

x

−

4

)

2

+

y

2

=

4

This is the form of a circle. Use this form to determine the center and radius of the circle.

(

x

−

h

)

2

+

(

y

−

k

)

2

=

r

2

Match the values in this circle to those of the standard form. The variable

r

represents the radius of the circle,

h

represents the x-offset from the origin, and

k

represents the y-offset from origin.

r

=

2

h

=

4

k

=

0

The center of the circle is found at

(

h

,

k

)

.

Center:

(

4

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------------------------------------------
Define adult and student tickets
------------------------------------------
Let the number of adult tickets be x
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------------------------------------------
Form equation and solve for x
------------------------------------------
x + x + 69 = 569         
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------------------------------------------------------------------------------------
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------------------------------------------------------------------------------------
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------------------------------------------------------------------------------------
Answer: Adult tickets = 250 ; Student tickets = 319
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