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Sati [7]
2 years ago
10

Name the property. a + b is a real number.*

Mathematics
2 answers:
Eduardwww [97]2 years ago
8 0

Answer:

a + b = b + a   \: \forall \: a,  \: b  \in \:   \R \ \\ a \times b = b \times a\: \forall \: a,  \: b  \in \:   \R \\ (a + b) + c = (b + c) + a\: \forall \: a,  \: b,  \: c,  \in \R \\ (a \times b) \times c = (b \times c) \times a \: \forall \: a,  \: b,  \: c,  \in \R \\a+0=0+a=0 \: \forall \: a,\in \:   \R \\a +b=c\: \forall \: a,  \: b,  \: c,  \in \R

Sati [7]2 years ago
4 0

Answer:

Closure Property of Addition

Step-by-step explanation:

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Terri is rewriting 7 Superscript 13 in expanded form. How many factors should she use in her expression?
netineya [11]

Answer:

7 x 13 expanded form is  y = 7 x 13  ........  7 dived by 13 in expand form is y=7 dived by 3

Step-by-step explanation:

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8 0
3 years ago
Fran’s store spent $64,000 on expenses last year. Rent of the store was 35% of those expenses .How much did Fran spend on rent.
andrezito [222]

Answer:

$22400

Step-by-step explanation:

multiply 64000 with 0.35 (35%)

6 0
2 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
If 7x-25 = x + 35. then the value of x is​
Nataly [62]

Answer:

x = 10

Step-by-step explanation:

7x-25 = x + 35

Subtract x from each side

7x-x-25 = x-x + 35

6x -25 = 35

Add 25 to each side

6x -25+25 = 35+25

6x = 60

Divide each side by 6

6x/6 = 60/6

x = 10

4 0
2 years ago
Practice working with reflections.
Alinara [238K]

Answer: The rule of the reflection is rx-axis(x, y) → (x, –y) ⇒ 3rd answer

Step-by-step explanation:

Let us revise the reflection on the axes

If point (x , y) reflected across the x-axis , then its image is (x , -y) , the rule of reflection is rx-axis (x , y) → (x , -y)

If point (x , y) reflected across the y-axis , then its image is (-x , y) , the rule of reflection is ry-axis (x , y) → (-x , y)

In Δ LMN

∵ L = (-4 , 2)

∵ M = (-5 , 4)

∵ N = (-2 , 3)

In ΔL'M'N'

∵ L' = (-4 , -2)

∵ M' = (-5 , -4)

∵ N' = (-2 , -3)

The signs of y-coordinates of the vertices of Δ LMN are changed, that means Δ LMN are reflected across the x-axis

∵ The y-coordinate of L is 2 and the y-coordinate of L' is -2

∵ The y-coordinate of M is 4 and the y-coordinate of M' is -4

∵ The y-coordinate of N is 3 and the y-coordinate of N' is -3

∴ Δ LMN is reflected across the x-axis

∴ The image of point (x , y) is (x , -y)

3 0
3 years ago
Read 2 more answers
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