Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

-i8√-400 Question 5 options: 20 -20 20i -20i

OpenStudy (anonymous):

is this -20i ?

OpenStudy (anonymous):

@dtan5457

OpenStudy (misty1212):

\[\sqrt{-400}=20i\]

OpenStudy (anonymous):

thank you :) @misty1212

OpenStudy (anonymous):

@dtan5457 ?

OpenStudy (dtan5457):

this is indeed -20i. good job

OpenStudy (misty1212):

what about the \(18i\) out front though?

OpenStudy (dtan5457):

im pretty sure she means -i^8

OpenStudy (misty1212):

it kind of looks like \[i8\sqrt{-400}\] which is none of those

OpenStudy (dtan5457):

amirite @EuniceOB97

OpenStudy (anonymous):

yes sir @dtan5457

OpenStudy (dtan5457):

then its -20i

OpenStudy (anonymous):

thank you :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!