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noname [10]
2 years ago
14

Plz help asap with explanation and will get the brilliant

Mathematics
2 answers:
Elina [12.6K]2 years ago
8 0
3x + y = -3
-2x + y = 7
Use elimination method
Subtract both equations
5x = -10, x = -2
Plug in -2 for x (any equation)
3(-2) + y = -3
-6 + y = -3
y = 3

Solution: x = -2, y = 3
Or as a coordinate: (-2, 3)
Lina20 [59]2 years ago
3 0

Answer:

(-2,3)

Step-by-step explanation:

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2x+8-3
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3 years ago
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TRUE OR FALSE: point (1, -1) and (-1, 1) lies in the same quadrant.
earnstyle [38]

Answer:

False.

Step-by-step explanation:

Point (1, -1) is located in Quadrant 4, while point (-1, 1) is in Quadrant 2.

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Which expression below is equivalent to the expression: 12^3 x 12^9 x 12^4 x 12•2. (I NEED HELP HURRY)
Whitepunk [10]

Answer:

12⁽¹⁸⁾

Step-by-step explanation:

The expression is given as ;

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12⁽³⁺⁹⁺⁴⁺²⁾  

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5 0
2 years ago
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Examine the diagram.
aniked [119]

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Using the information in the picture, 132 is an outside angle and x and (3x-24) are the two opposite inside angles.

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Now solve for x:

132 = x + (3x-24)

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8 0
3 years ago
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I'd greatly appreciate the help-
dem82 [27]

Answer:

The 3rd option

Step-by-step explanation:

To prove that 2 triangles are similar, we need to prove that 2 pairs of their angle measurements are congruent.

This is because all triangles have 180 degrees, so if 2 pairs are congruent, the remaining angles will also be congruent

We know that m<D=m<E

We also know that m<DCA=m<ECB because they are vertical angles.

Vertical angles are always congruent.

Therefore, the triangles are similar.

The correct similarity statement would be 1, since <D corresponds with <E.

Now let's look at the 3rd Statement. To prove that two lines are similar, we would have to prove that their alternate interior angles are congruent.

A pair of alternate interior angles would be <D and B or or <E  and <A

There is no way to prove this, since we do not know any of the angle  or that measurements or if the triangles are isosceles triangles.

Hence, the correct choice would be 1 only.

7 0
2 years ago
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