help :) Algebra 2

Question

help :) Algebra 2

anonymous · Answer

Answer choices:
7i over 10
- 7i over 10
- 7 over 10
70i over 100i^2

hartnn · Answer

1/i is -i.....this helps?

hartnn · Answer

this is because -i*i=1

hero · Answer

Hint:

$\frac{7}{10\sqrt{-1}}$

hero · Answer

Multiply top and bottom by square root -1

anonymous · Answer

honestly im still confused

hero · Answer

I'm sorry to hear that

anonymous · Answer

ok

hero · Answer

Ashley, it's called "rationalizing" the denominator

hero · Answer

That's not an explanation hartnn. You're giving answers.

anonymous · Answer

@hartnn thankyou for explaining it! and @Hero thanks for your help, and my name is lauren

hero · Answer

If you think you understand it now @Lauren, that means I shouldn't see any more similar questions posted. You should know how to solve these now since @hartnn supposedly "explained" it.

anonymous · Answer

lol your not my dad, please go help someone else

hero · Answer

I'm not your dad but I am a user on OS who hates it when people give answers without explanation. And I hate it even more when users like yourself think giving answers is okay.