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iragen [17]
3 years ago
15

Which ordered pair is the solution to the system?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
6 0

Answer:

C. (4,-7)

Step-by-step explanation:

To answer this question, I just graphed the two equations. Then I found where they intersected.

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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
diamong [38]

Answer:

 A-2, B-DNE*, C-3, D-DNE, E-4, F-1

---------------------

The first attachment shows the solutions to A and C.

The second attachment shows the solutions to E and F.

There are no real number solutions to systems B and D.

_____

In general, you can solve the linear equation for y, then substitute that into the quadratic. You can subtract the x-term on the left and complete the square to find the solutions.

A.

 (3-x) +12 = x^2 +x

 15 = x^2 + 2x

 16 = x^2 +2x +1 = (x +1)^2 . . . . add the square of half the x-coefficient to complete the square; next take the square root

 ±4 -1 = x = {-5, 3) . . . . . identifies the second solution set for system A

__

B.

 (x -1) -15 = x^2 +4x

 -16 = x^2 +3x

 -13.75 = x^2 +3x +2.25 = (x +1.5)^2

roots are complex: -1.5 ±i√13.75

__

C.

 (1-2x) +5 = x^2 -3x

 6 = x^2 -x

 6.25 = x^2 -x + .25 = (x -.5)^2

 ±2.5 +.5 = x = {-2, 3} . . . . . identifies the third solution set for system C

__

remaining problems are done in a similar way.

_____

* DNE = does not exist. There is no matching solution set for the complex numbers that are the solutions to this.

---------------------

<em>Hope this helps!</em>

<em />

<u>Brainliest would be great!</u>

<u />

---------------------

<em><u>With all care,</u></em>

<em><u>07x12!</u></em>

4 0
3 years ago
Please solve it <br>help!!
Mashcka [7]

Its upsidedown, witch one do you need help with?

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3 years ago
PEF and triangle GHI are similar right triangles.
LekaFEV [45]

Answer: it’s the first 1

Step-by-step explanation:

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2 years ago
Multiply and simplify. 6xy^3z⋅3x^2yx^2
klio [65]
It's letter c

multiply the coefficient then just add the degrees of each letter
4 0
3 years ago
Please help me with this homework
SIZIF [17.4K]

Answer:

16

Step-by-step explanation:

7 0
3 years ago
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