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chubhunter [2.5K]
3 years ago
9

Find the center and radius of this circle x^2+y^2-6x-10y+30=0

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

Center: (3,5)

Radius: 2

Step-by-step explanation:

x² + y² - 6x - 10y + 30 = 0

Put equation into center-radius form. First regroup terms:

(x²-6x) + (y²-10y) = -30

Complete the squares:

(x²-6x+3²) + (y²-10y+5²) = -30 + 3² + 5²

(x-3)² + (y-5)² = 4 = 2²

Center: (3,5)

Radius: 2

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Answer:

0.36

Step-by-step explanation:

Percentage of boys = 60%

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Percentage of boys that arrive by car

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Percentage of girls that arrive by car

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3 years ago
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Vilka [71]

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3 years ago
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mina [271]
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4 years ago
I need help fast please <br><br>Solve this and show steps <br><br>4.5×8-(0.4+9.6-(3.6-1.8))<br>​
valentina_108 [34]

Answer:

27.8

Step-by-step explanation:

You need to do brackets first

3.6-1.8 = 1.8

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2 years ago
Becky bought a magazine for $3.90, and the sales tax was 8.25%. How much sales tax did Becky pay on the magazine?
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Answer:

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Step-by-step explanation:

Find 8.25 percent of 3.90:

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