Fill in the blanks. # 3, 4, and 5

Mathematics

1 answer:

Nat2105 [25]3 years ago

3 0

Answer:i dont know

Step-by-step explanation:

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Can anyone help? I know it’s not A , but I need help . I’ll mark brainliest!

Paul [167]

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6 0

3 years ago

Find the x and y intercepts of 7x - 3y = 42

nlexa [21]

X int equal 6

y int equal -14

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3 years ago

Please I NEED HELP ASAP Graph the system of equations 2x+y=5; 14+7y=35

Luden [163]

You have to put it in Y=MX+B form, so that mean you subtract the 2x in the first equation and move it to the other side of the equal sign so it will look like this Y=2X+5 and for the second equation you do the same thing and thats your answer

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4 years ago

Read 2 more answers

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 distinct 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 complete squares and factor each resulting perfect square trinomial in order to determine the coordinates of the center of the circle:

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