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kogti [31]
3 years ago
9

What is the sum of 2/6 +7/6​

Mathematics
2 answers:
Tresset [83]3 years ago
6 0

Answer:

3/2

Step-by-step explanation:

2/6 + 7/6 = 9/6

9/6 can be simplified by dividing the numerator and denominator by 3.

9/6 = 3/2

Gala2k [10]3 years ago
3 0
The answer is 1 1/2
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Ganezh [65]
Not addition, since -1+1=0 and 0 doesn't belong to the set.

Not subtraction, since 1-1=0.

It is closed under multiplication. The set appears to contain all non-zero multiples of 3.

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What other operations are you supposed to consider?
5 0
2 years ago
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How would the expression x2 +8 be rewritten using Sum of Cubes?
Nadusha1986 [10]

Answer:

x^3+8=(x+2)(x^2-2x+4)

So if they meant x^3+8 then the answer is:

(x+2)(x^2-2x+4).

The choice this corresponds to is A.

Step-by-step explanation:

The sum of cubes formula for factoring or expanding:

a^3+b^3=(a+b)(a^2-ab+b^2)

You have I'm assuming they meant:

x^3+8.

Compare x^3+8 to a^3+b^3.

You should see in place of a you have x.

You should also see in place of b you have 2.

a^3+b^3=(a+b)(a^2-ab+b^2)

x^3+8

x^3+2^3

x^3+2^3=(x+2)(x^2-2x+2^2)

x^3+8=(x+2)(x^2-2x+4)

Let's check it for fun.

So we are going to use the distributive property.

We are going to distribute all the terms in the first ( ) to all the terms in the second ( ).

x(x^2-2x+4)   +   2(x^2-2x+4)

x^3-2x^2+4x   + 2x^2-4x+8

Combine like terms:

x^3-2x^2+2x^2+4x-4x+8

Simplify the grouping of like terms:

x^3+0x^2+0x+8

0 times anything is 0:

x^3+8

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Fifteen thousand , four hundred and nine 
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