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SSSSS [86.1K]
3 years ago
12

Factor the expression: -3r - 15

Mathematics
2 answers:
PIT_PIT [208]3 years ago
7 0

Answer: the answer for this is  -3 ( r + 5 )

Step-by-step explanation:

-3r - 15

3r -  3 * 5

-3 ( r + 5 )

iren2701 [21]3 years ago
5 0

Answer:

-3(r+5)

Step-by-step explanation:

............

.

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If set D is not the empty set but is a subset of set E, then which of the following is true?
viva [34]
Concept:
If every element of a set D is an element of set E, then D is the subset of E.
e.g
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As all the elements of D are in E, so D is the subset of E.
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As, in our example the set D={1,2,3} is the intersection of set D and set E.

From the above discussion, it is proved that <span>If set D is not the empty set but is a subset of set E then 
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Step-by-step explanation:

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3 years ago
12 over 12 and blank over 20
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Step-by-step explanation:

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3 years ago
Rewrite the quadratic function below in Standard Form.<br> y = (x - 4) (x + 3)
Damm [24]

the standard form of a quadratic formula is

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in this case you will solve using foil method

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<em>(</em><em>x</em><em> </em><em>×</em><em> </em><em>x</em><em>)</em><em> </em><em>+</em><em>(</em><em> </em><em>x</em><em> </em><em>×</em><em> </em><em>3</em><em> </em><em>)</em><em>(</em><em>-</em><em> </em><em>4</em><em> </em><em>×</em><em> </em><em>x</em><em>)</em><em> </em><em>(</em><em> </em><em>-4</em><em>)</em><em>×</em><em> </em><em>3</em><em>)</em><em>)</em>

<em>x</em><em>^</em><em>2</em><em> </em><em>+</em><em> </em><em>3x</em><em> </em><em>-</em><em> </em><em>4x</em><em> </em><em>-12</em>

<em>x</em><em>^</em><em>2</em><em> </em><em>-</em><em> </em><em>x</em><em> </em><em>-</em><em> </em><em>1</em><em>2</em>

<em>therefore</em><em> </em>

<em>y</em><em> </em><em>=</em><em> </em><em>x^</em><em>2-</em><em> </em><em>x</em><em> </em><em><u>-</u></em><em><u> </u></em><em><u>1</u></em><em><u>2</u></em><em><u> </u></em>

5 0
3 years ago
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