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Ivenika [448]
3 years ago
5

write in complete standard form then give the center and radius of each circle and graph the equation x2+y2-4x-12y-9=0

Mathematics
1 answer:
kakasveta [241]3 years ago
8 0
Standard form;

(x - 2)² + (y - 6)² = 49

the center-radius form of the circle equation is in this format;

(x - h)² + (x - k)² = r²

so the center of the circle is; (2, 6)
so the radius of the circle is; 7

hope that helps, God bless!
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Help with trig homework
velikii [3]

Answer:

x =19.2

y=29.8

Step-by-step explanation:

We will use the law of sines to solve this problem

sinA           sin B

----------- = -------------

a                     b

sin 55        sin 40

--------- = ---------------

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Using cross products

x sin 55 = 24.5 sin 40

Divide by sin 55

x = 24.5 sin 40 / sin 55

x =19.22512011

To one decimal place

x =19.2

To find the angle opposite y, we know the three angles of a triangle add to 180

y = (180-40-55) = 85

sin 55        sin 85

--------- = ---------------

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Using cross products

y sin 55 = 24.5 sin 85

Divide by sin 55

y = 24.5 sin 85 / sin 55

y =29.79516474

To one decimal place

y=29.8


3 0
4 years ago
Work out the volume of this sphere 4.7cm
Damm [24]

Answer:

435cm³

is my answer correct?

im pretty sure it is...

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Step-by-step explanation:

3 0
3 years ago
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madam [21]

Answer:

1/x^24

Step-by-step explanation:

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8 0
4 years ago
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gulaghasi [49]

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6 0
4 years ago
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Answer:

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Step-by-step explanation:

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hope this helps

6 0
3 years ago
Read 2 more answers
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