2 years ago

Help ASAP please need it rn !!!

Mathematics

1 answer:

Leto [7]2 years ago

6 0

I think maybe it’s C???

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Circle O, with center (x, y) passes through the points A(0, 0), B(-3, 0), and C(1, 2). Find the coordinates of the center of the

KonstantinChe [14]

Answer:

The center of the circle is

$(-\frac{3}{2},2)$

Step-by-step explanation:

Let the equation of the circle be

$x^2+y^2+2ax+2by+c=0$ , where (-a,-b) is the center of this circle.

The points lying the circle must satisfy the equation of this circle.

A(0,0)

We substitute this point to get;

$0^2+0^2+2a(0)+2b(0)+c=0$

$\implies c=0$

B(-3,0)

$(-3)^2+0^2+2a(-3)+2b(0)+c=0$

$\implies 9+0-6a+0+c=0$

$\implies -6a+c=-9$

But c=0

$\implies -6a=-9$

$\implies a=\frac{3}{2}$

C(1,2)

$1^2+2^2+2a(1)+2b(2)+c=0$

$1+4+2a+4b+c=0$

$2a+4b+c=-5$

Put the value of 'a' and 'c' to find 'b'

$2(\frac{3}{2})+4b+0=-5$

$3+4b+0=-5$

$4b=-5-3$

$4b=-8$

b=-2

Hence the center of the circle is

$(-\frac{3}{2},2)$

8 0

3 years ago

In which step does a mistake first occur? please help!

Leya [2.2K]

Answer:

step 1

Step-by-step explanation:

8÷2+(3x3-2)

8÷2+(9-2)

8÷2+(7)

4+7

=11

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2 years ago

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At a movie screening, there were 35 adults and 40 children. Using any ratio notation, write the ratio of adults to children.

xenn [34]

Answer:

35:40 ; 35 to 40 ; 35/40

Step-by-step explanation:

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2 years ago

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5000 for 5 years at 3.6% compounded monthly

Aleksandr [31]

Hello!

The sum at 5 years will be 8600.

Hope this helped! Need more help? Message me!

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3 years ago

Should I watch morbius?

7nadin3 [17]

Yes! you should watch morbius.

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2 years ago

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