100x^2-49y^2 (APEX)
There are many methods, though the most popular is the method of least squares. This method minimises the sum of the squares of the vertical distances between each point and the corresponding point on the line.
The disadvantages are that the calculations required are not simple and that the method assumes that the same linear relationship is applicable across the whole data range. And these are the disadvantages of the least squares method.
Here are two ways to know if a given quadratic equations can be factored (can be solved by factoring). 1. Calculate the Discriminant D = b^2 - 4ac. When D is a perfect square (its square root is a whole number), then the given equation can be factored. 2. Solve the equation by using the new Diagonal Sum method (Amazon e-book 2010). This method directly finds the 2 real roots without having to factor the equation. Solving usually requires fewer than 3 trials. If this method fails to get the answer, then we can conclude that the equation can not be factored, and consequently the quadratic formula must be used.
A scatter diagram will give a quick but rough extimate of the trend line - especially if there is a lot of variation about the trend. The least squares method will be more accurate.
in weighted average method we assigns the weight to the averages while in average methods we dnt do this
No it is not. At least, not sensibly.
gcf difference of two squares guess ad check/ box method
Yes FOIL method can be used with quadratic expressions and equations
the form of an expression compossed of products of factors, rather than sums or differences of terms. the expressions x(x-2) and (x+3)(x+4) are in factored form. y=(x-2)(x+5), or factored form, is an equation that describes a parabola. Once factored, using a FOIL method, it becomes standard form. y=(x-2)(x+5) y=x^2+5x-2x-10 y=x^2+3x-10
A common method is to grade them by the order of the largest matrix that has to be factored.
Using FOIL: (x+3)(x-3) equals x^2 -9 which is the difference of two squares
There are many methods, though the most popular is the method of least squares. This method minimises the sum of the squares of the vertical distances between each point and the corresponding point on the line.
nuckets
what is the difference between roster method and rule method
No, it will not.There are some expressions for which no analytical solution exists.
Difference between Percentage of Completion method and Completed Contract method?
you have to use F.O.I.L method to simplify it.