Wednesday, September 8, 2010

Step forward to math

A tally marks and graphs are the very interesting pretty simple topic of statistics. Generally tally marks and graphs are used to keep up and count the score. Here | symbol is used to represent the value one. In this symbol (|) is the symbol of tally mark chart.

For example 5 are represented as ||||| that is 5 tally marks. In this topic we have to study about tally mark and graphs.

Brief Description about Tally Marks and Graphs:

Tally marks in graphs are a quick way of keeping track of numbers in groups of five. In graph table have 1 vertical line is made for each of the first four numbers; and the fifth number is represented by a diagonal line across the previous four.
Tally marks table
Here the value 1 is represented by | tally marks in the graph.
Similarly the value 2 one is represented by | | tally marks in the graphs
Same as the value 3 is represented by | | | tally marks in the graphs
Same as 4 is denoted by |||| tally marks probability sampling
Similarly the value 5 is represented as | | | | | tally marks in the graphs
The value five does not denoted by | | | | | tally marks in the graphs. That is 4 straight lines crossed by the previous 5 lines and also Learn solving math Online. This tally marks | | | | | is equal to five counts.

Sunday, September 5, 2010

Step forward to math

Introduction to Ad joint and Inverse of a Matrix:
Matrix is a data of numbers set into a permanent number of rows and columns. The matrix contains usually real numbers adjoint of a matrix . It can also contains complex numbers but we find only the real numbers in this topic . Horizontal arrays of a matrix is said to be ROWS and the vertical arrays is said to be COLUMNS. If the matrix having x rows and y columns is have the order of xy.

Ad joint and Inverse of a Matrix::inverse Matrix

The inverse of square matrix nXn matrix A and the another matrix denoted A-1
AA-1= A-1A = I
Example for inverse matrix:
Example 1:
Find the inverse of matrix A

using method 1
Step 1
interchanging the leading diagnols
-7= 2, 2 = -9

Step 2
we changing the signs of the remaining elements, find the list of composite numbers

Step 3
Then find the determinan t
= -14 + 12 = -2
Multiply the result by 1/
A-1 = 1/
= 1/-2
=
Multiply the original matrix with inverse matrix to get identity matrix (I). then our answer will be correct.
A-1 A =

=
=
= I
Familiarization with math if the result is identity so our answer is correct.

Step forward to math

Introduction to pictograph example :
The graph should be representation of data in terms pictures. We are having several types of graphs. The fundamental type of them is pictograph. Pictograph should be a graph which illustrates the arithmetical information by means of using images or icons for representing data sets. The main advantage of pictographs is they are easy to read information. In this article we will discuss about the pictographs and its few examples.

Drawing the Pictograph:

The pictograph should be a way of representing arithmetic data in terms of the pictures of dissimilar kinds of data. These are used to interactive with students easily.
Let us show an example pictograph for the number of balls in a 4 students and need help with elimination math.
The names of the students are Austin, Peter, Jennifer and Andrea. Austin having 5 number of balls, Peter having 7 number of balls, Jennifer having 4 number of balls and Andrea having 8 number of balls.
The pictograph for that information is shown below:










From this pictograph we can easily identify which student having how many numbers of balls. For this only, the pictographs are commonly used. Learn Math Easily here. The pictographs are same as the histograms. In the histograms, we will use bars for represent the data. But in case of pictographs, we are using pictures for representing.

Wednesday, September 1, 2010

Free Math online study

Introduction to Five Hundredths:
It is the fraction form that can be shown as 5/100 . Do you want to learn about Nelson mathematics 5 .We call the number hundredths is in decimal form. Thus hundredths place in decimal can be expressed as . Thus by multiplying 5 to hundredths is called as five hundredths. The decimal value of hundredths is 0.01. Therefore standard value of five hundredth is 5 * (0.01) = 0.05. In this article, we see about the five hundredths.
Example 1:
Which of the following decimal have place of 5 hundredths?
Option:
a) 0.502
b) 4.015
c) 3.05
d) 5.116
Solution:
We know any number that can be multiply by 1/100 is known as hundredths. 5 hundredths is the number 5 that can be multiply 1/100.
Option a: 0.502, here the number 5 is in the place of tenth.
Option b: 4.015, here the number 5 in the place of thousandths.
Option c: 3.05, here the number 5 in the place of hundredths algebra regents.
Option d: 5.116, here the number 5 is once place.
Hence the correct answer is 3.05
Answer: Option c
For more Math Home Work Help