JordanC53 JordanC53
  • 21-06-2020
  • Mathematics
contestada

Simplify -3+i/7 + i
First, multiply both the numerator and
denominator by___.
A. -3 + i
B. -3 - i
C. 7 + i
D. 7 - 1

Respuesta :

mhanifa
mhanifa mhanifa
  • 21-06-2020

Answer:

D. 7 - i

Step-by-step explanation:

(-3+i)/(7 + i)=

(-3+i)(7-i)/(7+i)(7-i)=

(-21+10i+1)/50=

(10i-20)/50=

0.2i-0.4

Answer Link
oooo00 oooo00
  • 21-06-2020
The answer is C.7+i
Answer Link

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