Well, I explain it with money. Take a dollar. Divide it into piles of 50 cents, how many piles do you get?
Good, 2.
So 1/0.5 = 2
Now, divide it into quarters, how many? Good, 4. Now we are getting somewhere.
1/0.25 = 4
Yes, let's speed this up a little...

Ok, so now its kind of obvious you are just trying to find a lot of help with your homework. If I answer this one,
pleeeeeeeeeeeaaaaaaaaase press the like button on it :)
The question is asking about miles per gallon. Think about how many gallons of gas did dixie use? Good, 8....

Its tough to answer if you donâ€™t actually ask a question, based on what they tell you, they are probably trying to ask you something y=mx+b type equations. So went from 189 pounds to 162 pounds, how much weight did he lose?
Right! 27 pounds, good job!
Ok, and over how many weeks did...

An irrational number is one that goes on and on and on and on forever and ever and ever and ever and doesn't stop and doesn't repeat. The most common ones are pi and square roots of numbers.
The technical definition -- a rational one is one that can be written as a fraction. An...

I think you have to remember what speed is. Speed is distance over time, which is why it is measured in miles per hour. And most students remember the formula rate = distance / time from middle school. The question gives you info about speeds and times, but not about distance, so once we figure...

Hmmm, is the question find the limit of 1/x as x approaches zero and you have to use the formula limit of the limit of [f(0+h)-f(0-h)]/[(0+h)-(0-h)] as h approaches zero. This is a really difficult concept to learn as a beginner to calculus and one that often makes a lot more sense...

I like to teach this problem with the guess my rule. If we started out, I'd have you tell me what goes in and I'd tell you what comes out. You'd say 0 and I'd say 2, and you'd say 1 and I'd say 3 and you'd say 2 and I'd say 4 and either you would answer plus 2, keep geussing, or give me a look like...

Remember that grades are just a way to keep you motivated. Focus on mastering the concept rather than getting good grades because if you master the concepts, you will get the grades you want. Mastering PreCalculus is going to be important if you expect to take AP Calc next year or plan to study engineering or computer science in college.
1.) Look around for some resources outside of your class...
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Remember there is LCM and GCF and the weird thing about them is that the one that starts with the letter L ends up being greater and the one that starts with G ends up being less.
Let's identify these guys as first, second and third term -->
1T: 6ab^2
2T: 18ab^3
3T: 12a^2
So...