A simplified ratio may always be a rate.
A complex number has a real and an imaginary part
is a complex number
A complex number is represented as:

Where:
<em />
<em> real</em>
<em />
<em> imaginary</em>
<em />
By comparing the options to
;
and
are not complex numbers
This is so because they do not have imaginary parts
However,
is a complex number
Because; 9i is imaginary
Read more about complex numbers at:
brainly.com/question/19007885
Answer:
2.4
Step-by-step explanation:
Okay so first what you would do is find the common difference we can find this by doing 5/3 which is 1.66666666667 (rounded to 1.7)
Then what we do is 4 divided by 1.66666666667 which is 2.4
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0.4 is the tenth in there.
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Answer:
18
Step-by-step explanation:
If 100% is 9 then you need to multiply by 2 to get 200% which is 18.