robertos blog

Wednesday, November 26, 2008

Angles part 1

I know if a equation equal to 90 or 180 degrees because 180 is a supplementary because it has a strait line in the button and a middle diagonal line on your left and I know when it is equal to 90 because it is a complimentary and it has a strait line on your left and the bottom and a diagonal line at your right. Vertical angles because they are congruent. Yes we are solving these problems to find x. Congruent means angles that are the same. Vertical angles are congruent because the line are equal. Complementary angles are not congruent. No supplementary angles are not congruent. The other angles that are congruent is vertical, and alternate exterior.

Vertical angles

Congruent means that angles that are the same. I know when I have a vertical angles is when 2 angles are in the same location. A quadrilateral is a 4 side shape. Yes because you add them up then subtract it by 360 degrees then divide it by 2.

Monday, November 24, 2008

Pythagorean Theorem wrap-up

I believe that a right triangle is in a wheelchair ramp because when you cut the ramp diagonal it will be a right triangle and it will have two leg's and the longest side which is called the hypotenuse. I think Pythagorean theorem is use full for ex if you going to school and you want to stop at the store it will take a longer time so you should go strait to school b=store= 8 minutes and a=school=3 and 8^2 +3^2=25 the number that go into 25 is 5, so c=5. In my opinion Pythagorean theorem relate to solving equations because Pythagorean theorem and equations you have to find the variables. There for they are similar.

Wednesday, November 19, 2008

Moving Variables

When you do the opposite of the operation on both sides. We could add 4j in this problem 16j=12-4j. We have to do the opposite of subtraction which is addition on both sides. The relationship between subtraction and addition they are like brother and sister but in equation they are opposite. In a balance scale for it to be equal you have to one side with something and put the same wight for it could be equal.

Thursday, November 13, 2008

Laws of Exponents part 1

Yes we could expand any variables with an exponents because a lot of variables have exponents that what make a equation more challenging. Exponents of the term y is y! x times x is equal to x^2 it is not just x because there is two variables not one and because it is being times by it self. I did not really notice any other pattern only this one the pattern is when you multiply exponents you have the same amount of exponents that is the only thing I notice when I multiply exponents.

Laws of Exponents part 2

.To square a number it has to be multiply the number by it self instead of writing it a longer form. For ex, 4x4x4x4=4^4. Square stand for it being times by it self for EX 2h^2 + 3k^2. Cube is a number , it mean a number being times by it self by 3 for EX 4h^3 - 3h^3. look at this way if have 2 group of 3 jelly beans on each group 3 is being times by it self so just put 3^2 instead writing 3x3..

Integral exponents

You can not simplify expressions that do not contain like terms because if a equation don't have like terms it will stay the same for Ex 2k + 2n = 2k + 2n. x^2y and xy^2 are not like terms because y is being times by it self and x^2y is not because x is being times by it self. No xy is not the same thing as xyz because it does not have the same variable, so we can't combine them. The power of m is 7th power.The base is m. The negative base is a negative variable.

Monday, November 10, 2008

unlike terms

X is different than X^2 because X^2 is being times by it's self. We could combine terms that have the same exponent because it has to have the same terms and variable, so no you can combine like exponents. They could be called same variables. I learned how to do K.F.C. Yes 8m - 2m is the same 8m+-2m you could use K.F.C for the equation. Coefficients are problems to the power for EX 4x^2+ 2x the coefficients of x^2 and 2 it is important because the coefficients of x is being times by it self.