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Taya2010 [7]
3 years ago
13

How to solve 2y+(-2-7y)=4

Mathematics
1 answer:
AleksandrR [38]3 years ago
4 0

Answer:

y = -6/5

Step-by-step explanation:

Remove parentheses

2y - 2 - 7y = 4

group like terms

2y - 7y - 2 = 4

add similar elements

-5y - 2 = 4

add 2 to both sides

-5y - 2 + 2 = 4 + 2

simplify

-5y = 6

divide both sides by -5

-5y ÷ -5 and 6 ÷ -5

simplify

y = -6/5

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How many time larger is 5000 to 5
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1000 times larger.

Step-by-step explanation:

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2 years ago
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Triangle A″B″C″ is formed using the translation (x + 2, y + 0) and the dilation by a scale factor of one half from the origin. W
Travka [436]

Complete question:

Triangle A″B″C″ is formed using the translation (x + 2, y + 0) and the dilation by a scale factor of one half from the origin. Which equation explains the relationship between segment AB and segment A double prime B double prime?

A) segment a double prime b double prime = segment ab over 2

B) segment ab = segment a double prime b double prime over 2

C) segment ab over segment a double prime b double prime = one half

D) segment a double prime b double prime over segment ab = 2

Answer:

A) segment a double prime b double prime = segment ab over 2.

It can be rewritten as:

A"B" = \frac{AB}{2}

Step-by-step explanation:

Here, we are given triangle A″B″C which was formed using the translation (x + 2, y + 0) and the dilation by a scale factor of one half from the origin.

We know segment A"B" equals segment AB multiplied by the scale factor.

A"B" = AB * s.f.

Since we are given a scale factor of ½

Therefore,

A"B" = AB * \frac{1}{2}

A"B" = \frac{AB}{2}

The equation that explains the relationship between segment AB and segment A"B" is

A"B" = \frac{AB}{2}

Option A is correct

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3 years ago
12x+15y=-45 put into slope-intercept form, simplify all fractions.
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Answer:

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