A complex number has a real and an imaginary part
is a complex number
A complex number is represented as:
![a + bi](https://tex.z-dn.net/?f=a%20%2B%20bi)
Where:
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<em> real</em>
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<em> imaginary</em>
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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:
+200
Step-by-step explanation:
Earning means a gain or positive
+200
Answer:
Yes the sequence is arithmetic
The common difference is 6
Step-by-step explanation:
Determine whether the following sequences are arithmetic. If so, identify the common difference.
9, 15, 21, 27, ...
The sequence given in the above question is arithmetic because it follows the formula
Un = a + (n -1)d
Where
a= First term
n = Number of terms
d = Common difference
The common difference is calculated as the
Second term - First term
15 - 9
= 6
or the Third term - Second term
21 - 15
= 6
or the Fourth term - Third term
= 27 - 21
= 6
Therefore, the Common difference = 6
Answer:
1/14 Hope this helps!!! :) Have a great day
Step-by-step explanation: