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Vika [28.1K]
3 years ago
7

What is a counterexample for "subtraction of whole numbers is commutative" ??

Mathematics
1 answer:
devlian [24]3 years ago
6 0
The commutatice property for addition says a+b=b+a
If it was for subtraction, then it would be a-b=b-a
Take a=7 and b=5
7-5 is not equal to 5-7
2 is not equal to -2
So subtraction is not commutative for whole numbers.

Hope this helps :)
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Monique is factoring the expression 4 x + 16 x y. Her work is shown below. Factors of 4x: 1, 2, 4, x Factors of 16xy: 1, 2, 4, 8
Anika [276]

Answer:

Monique made an error when writing the factored expression.

Correct factored

expression=4x(1+4y)

Step-by-step explanation:

factoring the expression 4 x + 16 x y.

Factors of 4x: 1, 2, 4, x

Factors of 16xy: 1, 2, 4, 8, 16, x, y

GCF: 4x

Factored expression: 4 x (0 + 4 y)

Monique made an error when writing the factored expression.

The correct factored expression should be:

4x+16xy

=4x(1+4y)

Contrary to 4x(0+4y)

Correct factored

expression=4x(1+4y)

4 0
2 years ago
Read 2 more answers
Find the y intercept​
erica [24]

Step-by-step explanation:

Slope of line ST = Slope of line PQ = -3.

y = -3x + c

When x = 3, y = -1

=> (-1) = -3(3) + c, c = 8

Therefore the equation of line ST is y = -3x + 8 and the y-intercept is 8.

7 0
3 years ago
Read 2 more answers
What is the remainder in the synthetic division problem
denis-greek [22]

Answer:

C

Step-by-step explanation:

1 | 4   6   - 2

        4     10

  ------------------

   4   10    8 ← remainder

 

3 0
3 years ago
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What are two numbers that multiply for 54 and add to give you -3
cupoosta [38]

Answer:

9 and -6 multiply to -54 and add to 3

Step-by-step explanation:

when listing the factors of 54, we can find a pair that add to 3

1, 2, 3, 6, 9, 18, 27 and 54

9 and -6 is the pair.

hope this helps! :D

have a miraculous day, and brainliest is immensely appreciated!! <3

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2 years ago
Please Help
leonid [27]
The answer is D because microcosm is a community displaying characteristics of something larger.
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3 years ago
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