## Difficult Math Topic: Multiplying and Dividing with Inequalities

12/17/2012

One of the most difficult math topics that I have learned so far is multiplying and diving with inequalities. Now to you, it may sound pretty easy, but for me, it was really difficult. At first, the multiplying was easy for me. All I had to do was multiply, and then bring down the correct sign. The variable also always comes before the sign and number. Now, that was easy. But the dividing part was the difficult part. There were many rules to diving with inequalities. Like if you divide with a negative number, you have to switch the sign. So say you were multiplying -6 by x which is greater than 48. You would divide each side by -6, and you get 8. So it would be x is LESS THAN 8.  I didn't get it at first because I couldn't remember that rule so I kept getting the answer wrong.
But then, I finally found a solution to my problem. All I had to do was remember it. So I did. Now, it's too easy for me. I think I'm good at remembering things which really help me succeed in school. This math topic is really a piece of cake for me now, and I don't have much problems with it now. I thought I would never be able to accomplish it but I did.

## Pythagorean Theorem

12/10/2012

Are you wondering what the Pythagorean Theorem is? Well, in case you haven't heard of it, it is a formula used to find the hypotnues, also known as the longest side, of a triangle. Don't understand it that well, yet? The formula is a^2 + b^2= c^2. It is very simple to use once you learn and get the hang of it. Now I'm going to give you a simple problem for example. If Bob traveled on his bike 2 miles north to the store, went back to his starting point, and traveled west  for 2 more miles to his house, what is the distance from the store to his house?  The distance from his house to the store is hypotnues. If you draw it out, it would look like a right triangle. So then you use the formula. You replace a and b with 2, then you just solve to find c. It is pretty simple.
Another example would be: a ladder is stood next to a building at  5 feet. The distance of the whole area is 10 feet. How high is the ladder standing from the ground? The 5 feet would be the hypotnues, so you replace that with c. Then you replace b with 10, and you solve for a. Pretty simple!