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ArbitrLikvidat [17]
4 years ago
7

What is a commutative property of addition mean

Mathematics
2 answers:
Sphinxa [80]4 years ago
8 0
The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around. For addition, the rule is "a+b=b+a"; in numbers, this means 2+3=3+2. For multiplication, the rule is "ab=ba"; in numbers, this means 2x3=3x2.
vivado [14]4 years ago
6 0
The commutative property of addition means that when you see a problem, you change the order. The co in commutative means change order. That's what my teacher told me.
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DochEvi [55]

Answer:

2s+5p=40

Step-by-step explanation:

s=sodas

p=popcorn

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6 0
3 years ago
The vertex of a parabola is (3,-2) and another point on the parabola is (2,3) find the equation of the parabola in vertex form
jonny [76]

Answer:

y = 5 ( x - 3 ) ^2 -2

OR

y+2= 5 ( x - 3 ) ^2

Step-by-step explanation:

Vertex form of a parabola is given as:

y = a ( x - h ) ^2 + k

Where (h,k) is the vertex and (x,y) are the points on the parabola.

We are given that, the vertex is (3, -2) and another point on parabola is given as (2, 3).

h = 3,k = -2

First of all, putting the vertex in the vertex equation as given above:

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

Now, putting the values of x, y as 2, 3 and let us find the unknown variable a:

3 = a ( 2 - 3 ) ^2 + (-2)\\\Rightarrow 3 = a -2\\\Rightarrow a = 5

Therefore, the equation in vertex form can be written as:

y = 5 ( x - 3 ) ^2 -2

OR

y+2= 5 ( x - 3 ) ^2

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3 years ago
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Goshia [24]

Answer:

r

Step-by-step explanation:

we know this because it is the only part of the graph that is moving downwards, meaning its decreasing. P is an example of increasing, Q is 'neutral' and s is also increasing.

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sergiy2304 [10]

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Step-by-step explanation:

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Natalka [10]

There are two lines from the center of the circle labeled 5.

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X is half the length, so would b 9 /2 = 4.5 units long.

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3 years ago
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