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valina [46]
3 years ago
15

Write an expression that is equivalent to 3y − 9.

Mathematics
1 answer:
dybincka [34]3 years ago
7 0

Answer:

3(y-3)

Step-by-step explanation:

just factor out the greatest common factor

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PEMDAS

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Wait what sign do you mean
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Whats is it a reflection a horizontal stretch or horizontal compression
yan [13]
A reflection is a mirror image.  Placing the edge of a mirror on the x-axis will form a reflection in the x-axis.  This can also be thought of as "folding" over the x-axis.

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The railing of a wheelchair ramp is parallel to the ramp. Find x and y in the diagram.
yKpoI14uk [10]

Given:

The wheel chair ramp is parallel to the ramp.

To find:

The value of x and y.

Solution:

If two lines are parallel, then the alternate interior angles are congruent.

4x° + 6y° = 86° --------- (1)

Similarly,

5x° + 6y° = 94°

Subtract 5x° from both sides.

5x° + 6y° - 5x° = 94° - 5x°

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Substitute (2) in (1).

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94° - x° = 86°

Subract 94° on both sides.

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Multiply by -1 on both sides, we get

x = 8

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3 years ago
Negative one and three fifths divided by negative two thirds
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Answer:

12 over 5, or 2.4

Step-by-step explanation:

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