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-BARSIC- [3]
3 years ago
12

Which of the following expressions illustrates the commutative property of addition? 3 + (-7) = (-7) + 3 -4(5) = 5(-4) 4 + (1 +

8) = (4 + 1) + 8 -2(6 + 8) = (-2)(6) + (-2)(8)
Mathematics
2 answers:
Montano1993 [528]3 years ago
6 0

Answer:

3 + (-7) = (-7) + 3

Step-by-step explanation:

umka2103 [35]3 years ago
4 0
By definition, we have to:

 In mathematics, the commutative property or commutativity is a fundamental property that has some operations according to which the result of operating two elements does not depend on the order in which they are taken.

 This is fulfilled in ordinary addition and multiplication: the order of the addends does not alter the sum, or the order of the factors does not alter the product.

 We have then, that the commutative property of the addition is:
 3 + (-7) = (-7) + 3

 Answer:
 
An expression that illustrates the commutative property of addition is:
 
3 + (-7) = (-7) + 3
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OFFER A is cheaper.

Step-by-step explanation:

Given,

OFFER A

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And

OFFER A

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Pay for 3 packs get 1 free

To find which offer is cheaper.

<u>For OFFER A</u>

For 4 Packets he needs to pay £2.75

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<u>For OFFER B</u>

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7 0
3 years ago
What is 66 divided by 5784
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87
66 -----
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3 0
3 years ago
Read 2 more answers
5. Evaluate<br><br> 10+ (4 23 + 7) - 19<br> A. 30<br> B. 33<br> C. 47<br> D. 45
Lyrx [107]

Answer:

10+ (4 23 + 7) - 19

I don't know if the 4 is supposed to be multiple or subtract or to add but If it is add

4 0
3 years ago
Write the equation for the circle with center (1, 1) and radius 5.
zepelin [54]
The answer is C
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4 0
3 years ago
What is the slope of this line of best fit?
Bas_tet [7]

Answer:

The slope of the line of best fit is \frac{-6}{7}  ⇒ 2nd option

Step-by-step explanation:

The formula of the slope of a line is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

<em>To find the slope of the best line fit choose two points their positions make the number of the points over the line equal to the number of the points below the line</em>

From the attached graph points (1 , 9) and (8 , 3) are the best choice

∵ The line passes through points (1 , 9) and (8 , 3)

∴ x_{1} = 1 and x_{2} = 8

∴ y_{1} = 9 and y_{2} = 3

- Substitute them in the formula of the slope

∴ m=\frac{3-9}{8-1}=\frac{-6}{7}

∴ The slope of the line of best fit is \frac{-6}{7}

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