Showing posts with label Math. Show all posts
Showing posts with label Math. Show all posts
Monday, November 10, 2008
"Laws of Exponents part 1"
Yes, we can expand any variable with an exponent, because for example 2^4 is 2x2x2x2 which is 16.The exponent of the y is y^1. X times x is x^2, it is not x because with x times x you have two x^5 .Yes, 6^3 is the same as 6x6x6 which is 216.When you have an exponent is the same as that number times itself.
"Laws of Exponents part 2"
To square a number is to times a number by itself by two(^2).To cube a number is to times a number by itself by three(^3).They relate because your multiplying the number by itself by power.Example, 3^4= 3x3x3x3= 81 .the area could be 3 and you have 4 sides.
Thursday, November 6, 2008
"Integral Exponents"
We can't simplify expressions that do not contain like terms, because you can't make it
smaller.X^2 and xy^2 are not like terms because they are not the same, one has a y in it.
No xy is not the same as xyz, because xy does not have z, and you can't combine them. The power of m^7 is m to the seven power.The base is the m.A negative base is the opposite of a positive,for example the negative of 6 is -6, the negative of x is -x.
smaller.X^2 and xy^2 are not like terms because they are not the same, one has a y in it.
No xy is not the same as xyz, because xy does not have z, and you can't combine them. The power of m^7 is m to the seven power.The base is the m.A negative base is the opposite of a positive,for example the negative of 6 is -6, the negative of x is -x.
Thursday, October 16, 2008
"Like Terms"
The definition of like terms are terms with the same variable raised to the same power. 100p
and 300p are like terms, because we can combine them to get 400p. P and p2 are not like terms,
because we can't combine them, 1 is squared. We can't combine 2d+2f, because they have different variables. No an expression can not have an equal sign,because an equation does not equal.
and 300p are like terms, because we can combine them to get 400p. P and p2 are not like terms,
because we can't combine them, 1 is squared. We can't combine 2d+2f, because they have different variables. No an expression can not have an equal sign,because an equation does not equal.
Wednesday, October 15, 2008
Moving Variables
We move one variable term to the other side of the equal sign by using the inverse operation,for example the opposite of addition is subtracting.For the problem 16j=12-4j I would add 4j because
the inverse operation of subtracting is addition, so I would add 4j on both sides.The relationship between subtraction and addition is that they are the opposite of one another.The phrase "What
we do to one side we must do to the other side" relates to the balance scale, because if you have
a problem like 24j=12-4j, you must add because you have to do the inverse operation of the problem which is adding so then you add 4j on both sides,24j+4j and 4j+4j.
the inverse operation of subtracting is addition, so I would add 4j on both sides.The relationship between subtraction and addition is that they are the opposite of one another.The phrase "What
we do to one side we must do to the other side" relates to the balance scale, because if you have
a problem like 24j=12-4j, you must add because you have to do the inverse operation of the problem which is adding so then you add 4j on both sides,24j+4j and 4j+4j.
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