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To explain this, first you must know that i^2 is equal to -1 because i=√ (-1) and √ (-1)* √ (-1) cancels out the √ and therefore gives you a -1. So back to the question, i^4 can be broken down into (i) (i^3) …

I know a lot about ratios, but can I have someone explain to me what a unit rate is and how to find one?

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Explain how the positions of the Earth, moon, and Sun cause lunar phases and eclipses. Distinguish between total and partial lunar eclipses and identify when they occur in the moon’s orbit.

In the hints, it even looks like they changed the interval to fit their answer. Please explain I've already watched the video for this and the article spending many hours trying to figure this out.

Can you explain the multiple choice question, The Khan explanation didn't really help me.

Posted 2 years ago. Direct link to KitKatKittyKat's post “Please someone EXPLAIN......”

Can someone explain how to calculate the bond enthalpies using the enthalpy of reaction if the molecule is not made up of a set of uniform bonds? (i.e. is not like CH4?)

There's a way to do that with trigonometry, and it works, but don't ask me to explain it to you because I can't do that myself.