What is the sum of 12 – 5i and –3 + 4i? a.) –16 + 63i b.) 9 – i c.) 9 – 9i d.) 15 – 9i

Option B is correct.

Step-by-step explanation:

Given Expressions are 12 - 5i  and -3 + 4i

We have to find the sum of given Expressions.

So,

( 12 - 5i ) + ( -3 + 4i )

= 12 - 5i - 3 + 4i

Group real part and imaginary part together.

= 12 - 3 - 5i + 4i

=( 12 - 3 ) + ( -5 + 4 )i

= 9 + (-1)i

= 9 - i

Therefore, Option B is correct.

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step-by-step explanation:

answer:

1.14285714286

step-by-step explanation:

divide 40 into 35 and you will get your answer