3 years ago

Write the equation of the circle The circle with center C(1, - 4) and radius r= 2

Mathematics

1 answer:

neonofarm [45]3 years ago

6 0

Answer:

(x-1) ^2 + (y+4)^2 = 4

Step-by-step explanation:

The equation of a circle can be written as

(x-h) ^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x-1) ^2 + (y- -4)^2 = 2^2

(x-1) ^2 + (y+4)^2 = 4

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The number of windows on each floor form an arithmetic sequence; 124 windows on the first floor, 116 windows on the second floor

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Formula is 132 - 8n, and there are 52 windows on 10th floor.

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difference = 116-124 = -8 ( 8 less windows for every floor you go up)

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3 years ago

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Feliz [49]

Answer:

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Step-by-step explanation:

If we have direct variation the formula is

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6 = k*6^2

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Divide each side by 36

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