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3 years ago

Solving Linear Systems of Equations: Addition (Elimination Method)

Mathematics

1 answer:

Sauron [17]3 years ago

3 0

4. 6x + 5y = 4 a
6x-7y = -20 b

a-b
6x + 5y -6x+ 7y = 4+20
12y = 24
y = 2

Sub y in a
6x + 10 = 4
6x = 4-10
x = -6/6 = -1

5. 2x-3y=12 a
4x+ 3y = 24 b

b+a

4x+3y+2x-3y =36
6x=36
x=6

Sub x in a
12-3y = 12
-3y=12-12
y= 0/3 = 0

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Nastasia [14]

Answer:

Step-by-step explanation:

The correct answer is:

Explanation

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△WXY~△GEF.

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Simplify your answer and write it as a proper fraction, improper fraction, or whole number.

If two triangles are similar, their similarity ratio is the ratio between a side length in the first triangle and the corresponding side length in the second triangle.

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The similarity ratio of △WXY to △GEF is the ratio between a side length in △WXY and the corresponding side length in △GEF. So, the similarity ratio is

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3 years ago

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crimeas [40]

The cross-section of a right rectangular pyramid will be shaped similar to the base, that is, a rectangle. Hence, 4th option is the right choice.

If the peak of the rectangular pyramid is directly above the center of the base, it creates a perpendicular to the base, indicating the height of the pyramid. This type of rectangular pyramid is known as the right rectangular pyramid.

A rectangle is a quadrilateral, that is a closed figure with 4 line segments, with all four interior angles at 90°.

When we slice a right rectangular pyramid vertically down at the red line by a plane, not passing through the vertex, of the pyramid will be a dilated image of its base.

A dilated image is an enlarged or diminished image of the preimage, similar with all angles.

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2 years ago

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AleksAgata [21]

Answer:

Step-by-step explanation:

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3 years ago

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Stella [2.4K]

Answer: The equation in slope-intercept form is y=2x-11

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3 years ago

A single die is rolled. find the probability of rolling a 2 or an odd number

prisoha [69]

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