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azamat
3 years ago
12

A plus [ b plus 12] = [b plus 12] plus a

Mathematics
1 answer:
stira [4]3 years ago
7 0

Answer:

Commutative law of addition

Step-by-step explanation:

a +[b+12] = [b+12] +a

The commutative law of addition states that when two variables are added the answer remains the same irrespective of the position of the variables but the variable must be equal .

This can be explained by numbers .

Suppose we have two numbers 4 and 7 then the law can written as

4+7= 7+4

11= 11

We see we get the same answer whether 4 is written before or after 7.

Similarly in the given equation we have two variables ,

one is a the other is [b+12] . So it does not matter whether a is written before or after [b+12] in addition.

Hence it satisfies the commutative law of addition

a +[b+12] = [b+12] +a

a+b+12= b+12 +a

a+b+12= a+b+12

After solving we will get the same answer on both sides.

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If (c) were f(k) = -3/k+2, what value of k would be excluded from the domain?
9966 [12]

k = - 2 is excluded from the domain

the denominator of f(x) cannot be zero as this would make f(x) undefined. Equating the denominator to zero and solving gives the value that k cannot be

solve k + 2 = 0 ⇒ k = - 2 ← excluded value



6 0
3 years ago
What’s are the answers for both?
nevsk [136]

Answer:

<h2>d = 8</h2><h2>g = 2</h2>

Step-by-step explanation:

8d + 4 = 5d + 28

Group like terms

That's

8d - 5d = 28 - 4

3d = 24

Divide both sides by 3

d = 8

\frac{7(7g + 8)}{4}  = 38.5

Cross multiply

we have

7(7g + 8) = 38.5(4)

49g + 56 = 154

49g = 154 - 56

49g = 98

Divide both sides by 49

g = 2

Hope this helps you

5 0
4 years ago
Write an equation with two variables that represents a real word situation
KATRIN_1 [288]
<span><span><span>Solve for<em> t</em>. </span> <span><em>d</em> = <em>rt heres a real word question. but im not sure if you can use this exact one :)</em></span></span></span>
8 0
4 years ago
Hey i need help with a test score!!
Lapatulllka [165]

Ok, so I'm pretty sure you get it by just dividing 168 by 182 to get 0.923 etc. Then if you multiply it by 100 then you get your grade. Which is about a <em>92.3%</em>. Hope this helps.

4 0
4 years ago
Draw a square with one vertex on the origin (-3, 5) and a perimeter of 20.
vampirchik [111]

Answer:

Coordinates:

(-3, 5)

(2, 5)

(-3, 10)

(2, 10)

Step-by-step explanation:

Perimeter formula:

length + width + length + width

Insert known value(s):

l + w + l + w = 20

Squares must have the same value for all 4 sides, so what number × 4 will equal 20? 5.

5 + 5 + 5 + 5 = 20

This means coordinates will be 5 units apart:

(-3 + 5, 5) = (2, 5)

(-3, 5 + 5) = (-3, 10)

Mark these coordinates on your grid as you go to double check the shape turns becomes a square:

(2, 5 + 5) = (2, 10)

Counting between them should equal 5 units for each side: I checked using the desmos graphing calculator online.

5 0
3 years ago
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