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4 years ago

Which properties are used to add these complex numbers? Choose all that apply.

Mathematics

2 answers:

mario62 [17]4 years ago

5 0

B. Associative Property , you're working out the numbers in the parentheses before anything else.

Dennis_Churaev [7]4 years ago

3 0

Answer:

Properties used here are:

A. Commutative property.

C. Associative property

Step-by-step explanation:

Given the expression:

(7+2i) + (4+3i)

(7+ 2i) + 4 + 3i

According to associative property:

a + (b + c) = (a + b) + c

7 + (2i + 4) + 3i

Using commutative property:

a + b = b + a

7 + (4 + 2i) + 3i

(7 + 4) + (2i + 3i)

Simplify:

11 + 5i

So, we use Commutative & Associative Property.

That's the final answer.

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The image attached is associated with this question and m in it refers to the mean value which is $225000 here and d refers to the standard deviation which is $25000 here.

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