Is 3/12 a rational or irrational number

1 answer:

7 0

3/12 is actually a quarter which is equal to 0.25. It certainly isn't an irrational number, but is indeed a rational one.

By definition irrational numbers cannot be represented using single fractions.

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Write the sum or difference in the standard form a + bi.

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Answer:

Sum = 13+ 4i Difference = -5 - 8i

Step-by-step explanation:

Given complex number as (4 -2i) and (9 + 6i)

Sum of these complex number is

(4 -2i) + (9 + 6i) = ( 4 +9) + (6i -2i)

= 13 +4i

Difference of these complex number is

(4 -2i) - (9 + 6i) = (4 -9) - (2i +6i)

= -5 - 8i

Hence the sum and Difference of given complex numbers are

Sum = 13+ 4i Difference = -5 - 8i Answer

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