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Radda [10]
3 years ago
12

What is the standard form of this equation of a circle?

Mathematics
2 answers:
Olenka [21]3 years ago
5 0
<span>x² + y² + 14x − 4y − 28 = 0

x² +14x +y² - 4y =28
x²+2*7x  +7² -7²  + y² - 2*2y +2² - 2² = 28
(x+7)² + (y-2)² -7²-2² =28
</span>(x+7)² + (y-2)²=28+49+4

(x+7)² + (y-2)² =81 is the answer.
Marina CMI [18]3 years ago
5 0

(x2 + 14x + 49) + (y2 − 4y + 4) − 28 = 49 + 4

(x + 7)2 + (y − 2)2 − 28 = 49 + 4

(x + 7)2 + (y − 2)2 = 49 + 4 + 28 = 81.

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The cylinder is 10 meters wide and the volume is 300 cubic meters what's the height of the cylinder?
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alukav5142 [94]
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kvv77 [185]

Answer:

  an = 67 -11(n -1)

Step-by-step explanation:

The terms of your arithmetic sequence have a common difference of -11. The first term is 67.

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lyudmila [28]
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