Scientific notation can help with this one. …
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Tutoring Precalculus, Using Reciprocals
We went through the midterm test. A few concepts were missing in his approach, like absolute value and a mistake with adding negative numbers. Spent a bit of time on changing fractions by multiplying …
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ELI5, How to approach addition and subtraction for a five year old
I was helping a student with math the other day. He’s 5.5 years old and was learning to count and some basics of addition and subtraction. Counting by 1’s and 2'sHad seen that acronym ELI5 before, …
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“What is the square root of 28 over square root of 7?”
Here's one way to do it, factor the square root of 28, completely and then go on from there. Another method is a bit less work, You could place both under the same radical sign, simplify, then solve …
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“What is the order of operations?” PEMDAS, BODMAS
What is the Order of Operations? It's basically a system we made up. There isn't anything wrong with it. But it is just a system for everyone to do things in a standard order. If the system was …
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“What is the opposite of natural log?”
If you raise the natural number e (approximately 2.7) to the lnx, you get back x. And if you take the natural log of e^x, you get x. …
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