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chubhunter [2.5K]
2 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]2 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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Pls help! I’ll give brainliest!
nexus9112 [7]

Answer:

73°

Step-by-step explanation:

By the property of intersecting chords inside a circle:

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6 0
2 years ago
School started at 8:05 a.m and ended at 2:40p.m. the work below shows Erica's calculation of the length of the school day
harina [27]

Answer:

B. She subtracted the end time from the start time and

D. She did not account for a.m. and p.m. in the start and end times.

Step-by-step explanation:

The school started at 8:05 a.m. and ended at 2:40 p.m.

And the length of the school day is calculated by Erica and it is shown in the attached photo.

See the attached photo.

Erica has done two errors which are  

B. She subtracted the end time from the start time and  

D. She did not account for a.m. and p.m. in the start and end times. (Answer)

7 0
3 years ago
49 is 50% of what number?
mel-nik [20]

Answer:

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Step-by-step explanation:

3 0
2 years ago
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Hayley is filling small cone-shaped cups with clay for an art project. Each cup has a height of 4 centimeters and a diameter of
Ierofanga [76]

Answer:

10.6 cones

Step-by-step explanation:

Given data

h= 4cm

d= 1.5cm

r= d/2= 0.75cm

The expression for the volume of a cone is

V= 1/3πr^2h

substitute

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V=1/3*7.0695

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Since the volume of 1 cone is 2.4cm^3

She can fill

=25/2.3565

=10.6 cones

About 10.6 cones

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2 years ago
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Crazy boy [7]

Answer:

John planted flowers. For every 5 that grew per month 2 died. In how many months did 28 grow?

Step-by-step explanation:

Hope this is what u were looking for

8 0
2 years ago
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