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Elina [12.6K]
3 years ago
9

Question 12

Mathematics
1 answer:
Anestetic [448]3 years ago
4 0
40 kilometers I think
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2.3 x 10^4 x 6.7 x 10^3 divide by <br> 5 x 10-^8
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Answer:

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Step-by-step explanation:

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3 years ago
Write the standard form of the equation of the circle that passes through the point
AnnZ [28]

Answer:

The standard form of the equation of the circle is x^2+y^2=1.

Step-by-step explanation:

A circle is the set of points in a plane that lie a fixed distance, called the radius, from any point, called the center.

The equation of a circle in standard form is

                                             (x-h)^2+(y-k)^2=r^2

where <em>r</em> is the radius of the circle,  and <em>h</em>, <em>k</em> are the coordinates of its center.

When the center of the circle coincides with the origin h=k=0, so

                                            (x-0)^2+(y-0)^2=r^2\\x^2+y^2=r^2

We are also told that the circle contains the point  (0, 1), so we will use that information to find the radius <em>r</em>.

                                                   0^2+1^2=r^2\\r^2=0^2+1^2\\r^2=1\\r=\sqrt{1}

Therefore, the standard form of the equation of the circle is x^2+y^2=1.

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3 years ago
Yea I don't know this app But I heard people leaked my phone number and calling and someone saying I'm a actor yes... Please sto
pav-90 [236]

Answer: Hmm I don't know that you're an actor and hey u can report them if they leaked your phone number  

Step-by-step explanation:

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15a-21

Step-by-step explanation:

could be wrong though

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https://www.khanacademy.org

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Khan Academy is free and you can choose by grade level or course. It's a personalized learning experience with videos and practice exercises that includes progress tracking.

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