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3 years ago

7

Please help marking brainliest if correct, serious answers only, thank you.

1 answer:

musickatia [10]3 years ago

6 0

It’s alternate interior!!!
cuz they’re on the inside of the lines
and they’re not on the same side of the line that crosses

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Find the center of the circle that you can circumscribe about DABC.

Vlada [557]

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

A circle can be modelled after a expression of the form:

$A\cdot x + B\cdot y + C =-x^{2}-y^{2}$ (1)

We can determine all coefficients by knowing three <em>distinct</em> points on plane.

If we know that $(x_{1}, y_{1}) = (2, 8)$ , $(x_{2}, y_{2}) = (0, 8)$ and $(x_{3}, y_{3}) = (2, 2)$ , then the solution of the system of linear equations is:

$2\cdot A + 8\cdot B + C = -68$ (2)

$8\cdot B + C = -64$ (3)

$2\cdot A + 2\cdot B + C = -8$ (4)

$A = -2, B = -10, C = 16$

Now we proceed to <em>complete</em> squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:

$x^{2}+y^{2}-2\cdot x -10\cdot y +16 = 0$

$(x^{2}-2\cdot x +1)-1+(y^{2}-10\cdot y +25)-25 +16 = 0$

$(x-1)^{2}+(y-5)^{2}= 10$

The center of the circle that circumscribe about DABC is $(h,k) = (1, 5)$ .

To learn more on circles, we kindly invite to check this verified question: brainly.com/question/11833983

5 0

3 years ago

(6.15x+0.24y)÷1.5+5.9x−1.6y Help plz

nadya68 [22]

Answer:

10x − 1.44y

Step-by-step explanation:

(6.15x + 0.24y) ÷ 1.5 + 5.9x − 1.6y =

= 4.1x + 0.16y + 5.9x − 1.6y

= 10x − 1.44y

8 0

4 years ago

Read 2 more answers

Can you help me to do this please?Finding the inverse of each function

marusya05 [52]

Let

$y=-\frac{3}{x+1}+2$

Find the equation in terms of y in the form x = f(y).

$\begin{gathered} y-2=\frac{-3}{x+1} \\ x+1=\frac{-3}{y-2} \\ x=\frac{-3}{y-2}-1 \end{gathered}$

Replace y by x in the right hand side, which will be the required inverse of the function.

$g^{-1}(x)=-\frac{3}{x-2}-1$

3 0

1 year ago

Solve expression completely.<br> 64°<br> O<br> 1<br> O 64<br> O Unknown

Zolol [24]

Answer:

b

Step-by-step explanation:

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=5%20%5Csqrt%7B20%7D%20" id="TexFormula1" title="5 \sqrt{20} " alt="5 \sqrt{20} " align="absmid

SOVA2 [1]

Answer:

Step-by-step explanation:

= $5\sqrt{20}$

= $5\sqrt{2^{2}*5 }$

= $5\sqrt{2x^{2} } \sqrt{5}$

=5 * $2\sqrt{5}$

= $10\sqrt{5}$

3 0

3 years ago