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quester [9]
3 years ago
10

What is Commutative Property? I need help ASAP!! PLEASE HELP!!!!

Mathematics
2 answers:
Fudgin [204]3 years ago
7 0
The commutative propertyof addition says, "that you will get the same answer whether you are adding 1+2 or 2+1. this also works for 2 or more number."

I hope this helps!
eimsori [14]3 years ago
4 0

Commutative property states that in addition and multiplication changing the order of operands does not change the result.  Division and subtraction are not commutative.

We will see commutative property of addition by example. Let us take any two numbers like 5 and 3. Now let us add these numbers.

5+3=8

Now we will add these number by switching their order.  

3+5=8

We can see that changing order of our numbers has not affected our answer. We got 8 by either way.

5+3=3+8

Now we will see commutative property of multiplication. We will take the same numbers and multiply them.

5\times3=15

Now let us change order of our numbers.

3\times5=15

We have seen from our above examples that order doesn't matter in addition and multiplication of numbers, therefore, addition and multiplication of numbers are commutative operations.

Now let us see if this true for division and subtraction.

4-2=2

2-4=-2

We can see that 2\neq-2. As order matters in subtracting numbers, therefore, subtraction of numbers is not a commutative operation.

Now let us see an example if division is commutative or not.

\frac{4}{2} =2

\frac{2}{4} =\frac{1}{2}

We can see that 2\neq\frac{1}{2}. As order matters in multiplying numbers, therefore, multiplication of numbers is not a commutative operation.



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2 years ago
Find the surface area of this net.
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Answer:

<h2>231cm²</h2>

Step-by-step explanation:

First, let's find the surface area of both the triangles

5x3=15

So, the surface area of the triangles is 15 sq.cm

Now, let's find the surface area of the base (large rectangle in the middle)

12x8=?

10x8=80

2x8=16

80+16=96

12x8=96

So, the surface area of the base, is 96sq.cm

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So, the surface area of the two side rectangles is 120sq.cm

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120+96=216

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<h2>So hence, the surface area of this net is 231cm²</h2>
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2 years ago
Which are samples that are appropriate to survey regarding how the city’s residents feel about building a new youth center? Sele
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it is 2, 4, AND 5:)

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3 years ago
Solve 81^x= 27^x + 2
azamat

Answer:

x=6

Step-by-step explanation:

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8 0
2 years ago
The stadium has a form of a rectangle with two semicircles attached to the short sides. The long side of a rectangle is 2 times
stepan [7]

Answer:

2x²+1/4πx², and 122,850 sq. ft.

Step-by-step explanation:

We know that the short side of the rectangle is x.  The long side is 2 times longer than the short side; this means the long side is 2x.  This makes the area of the rectangular portion of the stadium

x(2x) = 2x².

We have two semi-circles at each end.  The diameter of each semi-circle is x; this makes the radius 1/2x.

The area of a circle is A = πr²; since these are semi-circles, the area would be given by A = 1/2πr².  Using 1/2x in place of r, we have

A = 1/2π(1/2x)² = 1/2π(1/4x²) = 1/8πx²

Using 22/7 for π, we have

A = 1/8(22/7)x² = 22/56x²

Since there are 2 semi-circles, this gives us

2(22/56x²) = 44/56x²

Simplifying this, we have

A = 22/28x² = 11/14x²

This gives us the expression

2x²+11/14x² for our expression for the area.

(Without using 22/7 for pi, we have

2x²+2(1/8πx²) = 2x²+2/8πx² = 2x²+1/4πx²

Using 210 for x and 22/7 for π, we have

A = 2(210²)+1/4(22/7)(210²) = 88200+34650= 122,850

5 0
2 years ago
Read 2 more answers
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