A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Aiko is finding the sum (4 + 5i) + (–3 + 7i). She rewrites the sum as (–3 + 7)i + (4 + 5)i. Which statement explains the property of addition that she made an error using?
Aiko incorrectly used the commutative property by changing the order of the two complex numbers.
Aiko incorrectly used the identity property by combining the real number and the coefficient of the imaginary part.
Aiko incorrectly used the distributive property by combining the real number and the coefficient of the imaginary p
anonymous
 one year ago
Aiko is finding the sum (4 + 5i) + (–3 + 7i). She rewrites the sum as (–3 + 7)i + (4 + 5)i. Which statement explains the property of addition that she made an error using? Aiko incorrectly used the commutative property by changing the order of the two complex numbers. Aiko incorrectly used the identity property by combining the real number and the coefficient of the imaginary part. Aiko incorrectly used the distributive property by combining the real number and the coefficient of the imaginary p

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok could you explain how i do this so i can figure it out on my own?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we have this: \[\Large \left( {  3 + 7} \right)i + \left( {4 + 5} \right)i =  3i + 7i + 4i + 5i = 13i\] which is not right since it is a purely imaginary number, whereas the sum of your originals number is: \[\Large b\left( {4{\text{ }} + {\text{ }}5i} \right) + \left( {3{\text{ }} + {\text{ }}7i} \right) = \left( {4  3} \right) + \left( {5 + 7} \right)i\] which is not a purely imaginary number

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1oops.. \[\Large \left( {4 + 5i} \right) + \left( {  3 + 7i} \right) = \left( {4  3} \right) + \left( {5 + 7} \right)i\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you for the help but its to late now
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.