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3 years ago

Find the measures of

Mathematics

1 answer:

ki77a [65]3 years ago

8 0

3y+15=4y-3

Subtract 3y from both sides

15=y-3

Add 3 to both sides

Y=18

4(18)-3

72-3

69 both angles are 69

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How do you do this. Please give a full answer and explain why.

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Law of Exponent

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Exponent Def. (For cubic)

$\displaystyle \large{ {a}^{3} = a \times a \times a }$

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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

$\implies -6a=-9$

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

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

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

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Hence the center of the circle is

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

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3 years ago