Thursday, September 23, 2010

3 Dimentional Figures

3 dimensional figures:
Find the surface area of the cylinder when the area of the cylinder is 157 cm2 and the radius and height is 5 cm and 7 cm respectively.
Given: Area = 157 cm2
Radius = 5 cm
Height = 7 cm
Sol:
Formula: 2Пr2 + 2Пrh = 157 + 2П5(7) =157 + 219.8 = 376.8 cm2
My next blog is on:
XY coordinates
Other helpful links:
Fraction number line

Friday, September 17, 2010

Multiples of 3

Multiples of 3
The accepted representation of cast is m [xx] n area the capricious m shows amount of rows in the accustomed cast and the capricious n denotes amount columns in the accustomed matrix.
When the amount of rows of the aboriginal cast is according to amount of columns of the additional cast agency alleged as according matrix. In multiplication accumulate every row of aboriginal cast assorted with every cavalcade of additional matrix. The accumbent adjustment of adjustment is alleged as row matrix. The vertical adjustment of adjustment elements is alleged as cavalcade matrix.
The afterward action is followed at the time cast multiplication
Accumulate the row of aboriginal cast with cavalcade of additional matrix.
We can add aboveboard cast with non aboveboard matrix. Aboveboard cast has according amount of rows and according amount of columns.

Thursday, September 16, 2010

Substitution calculator:
1)Determine the given equation :
x - y = 14
2x - y = 28
Answers: x=14 , y=0
2)Determine the given equation :
2x + 3y =-4 and y = x – 3
Answers: x=1y= -2.

Wednesday, September 15, 2010

Algebra Answers

Algebra 1 answers:
Simplify the Saxons math algebraic 1 equation.
5(p -2) + 8q - 6(p -q -2) + 3
Solution:
Given algebraic expression is

5(p -2) + 8q - 6(p -q -2) + 3
Multiplying the factors

= 5p - 10 + 8q -6p + 6q + 12 + 3
Grouping the above terms

= -p + 14q + 5

Factors

Factors : for help on: (Factors of 24)
Factors are the digit that is multiplied equally to get another number:
3 x 7 = 21 (3, 7 factor)
In prime factorization, every factor will be prime numbers.
Example:
The prime factors of 21 will be 3 and 7 (3 x 7 = 21, and 3 and 7 are prime numbers).

Tuesday, September 14, 2010

Standard Form Calculator

Standard form calculator:

Triangle form calculator:

Metric measurement is standard form of measurement. All the countries accept the metric measurement (SI unit) system to measure the quantities.

With the help of standard measurement system we can measure the blown magnitude.
  • Length
  • Volume
  • Mass
  • Temperature
  • Time
  • Area
  • Perimeter

Wednesday, September 8, 2010

Introduction to calculus

Introduction to calculus:

Here the function f(x) = (x + 5) have the following conditions,
(x + 2)

At point zero, we can say that numerator = 0
So, x+5 = 0 => x=-5.
At vertical asymptote at x=-2, since denominator = 0
x+2 = 0 => x=-2
At y-intercept, the function of x equal zero, then
f(x) = 0, (0 + 5) = 5

Introductory Algebra

introductory algebra:

In intermediate algebra and in other branches of arithmetic, letters are used to represent numbers with unknown or unassigned values.

A number represented by a letter is called a literal number, and any number expression in which one or more number symbols are letter is called a literal expression.

In any number expression the parts connected by the signs + or - are called terms. An expression by either of the signs + or – consists of one terms, and is called a monomial. An expression consisting of two terms is a trinomial. In general, an expression consisting of three or more terms is called a polynomial in intermediate algebra.

Tuesday, September 7, 2010

Math 4th Grade

4th Grade Math :

1. 23244 = 2 · 2 · 3 · 13 · 149

= 22 · 3 · 13 · 149. (22 represents the square of 2.)
2. 625 = 5 . 5 . 5 . 5

= 54

Here, 54 represents the fourth power of the number 5.

Monday, August 30, 2010

Square foot

Square foot calculator
Triangle:

Triangle consists of base & height .So they can calculate the base & height & divide the worth with two.
(base x height )
The formula for the area of the triangle is

Let they solve an example issue for the square foot calculators

* Find the area of the triangle which consists of 16 foot & height is 8 foot.

So they assume the formula that is given in above

The area of the triangle is ( 16 X 8 ) / 2

= 128 /2

Area of a triangle = 64 square foot

The necessary calculators solution is 64 square foot.

Thursday, August 26, 2010

F(x) in math

Question: What is the average rate of change of f(x) = 5x + 4 over [5, 6] ?(f x math)

A ) - 12500
B ) 3129
C ) 15629
D ) 12500

Steps to derive

1 Here f(x) = 5x + 4, x changes from a = 5 to b = 6.

2 The average rate of change of f(x) = f(b) - f(a)b - a
[Definition.]

3 = f(6) - f(5)6 - 5

4 = 15629 - 31291
[Simplify.]

5 = 12500

Wednesday, August 25, 2010

Scientific notation

How to do scientific notation:

Which of the following are not is scientific notation.

(a) 6.2 10 5
(b) 8.574 10 11
(c) 8.0 10 4
(d) 83.75 10 6
(e) 0.46 10 5
(f) 6.75 10 1
Soln: Here ‘d’ and ‘e’ are not in scientific notation form.
In (d) A = 83. But this does not lie between 1 ≤ A >
In (e) A = 0 and it doesn’t lie in 1 ≤ A <>

How to devide fractions

steps to divide fractions:

How to divide a fraction is the simplest technique to perform, it only requires multiplication. keep the first fraction as it is when two fractions are dividing and then multiply the first fraction with the reciprocal of the second fraction (i.e. invert of the second fraction).
Example: How to divide fractions 1/6 / 7/8
Keep the first fraction 1/6 as it is = 1/6
And then reciprocal the second fraction = 8/7
1/6 x 8/7 = (1 x 8)/ (6 x 7) = 8/42 = 4/21.this is after multiplying both the fractions.

Tuesday, August 24, 2010

Algebra word problems

11th Grade math Algebra Word Problems:

Example:
The average of a six numbers is 22. take out one of the number from the given list; the average of the left over numbers is 14. Find the number that was removed from the list?
Solution:
Step 1:
The difference between sum of left over seven numbers and the sum of eight numbers is said to be removed number that is
Sum of six number – sum of left over (remaining) 5 numbers
Step 2:
Use the formula
Sum of terms = Average value x number of terms
Sum of eight number = 22 x 6 = 132
Sum of 7 numbers = 14 x 5 = 70
Step 3:
Using the formula
The removed number = sum of 8 number – sum of left over 7 number
132 - 70= 62
Answer:
The number removed from the list is 62.

Friday, August 20, 2010

Three fraction calculator

Fraction Calculator:

1. Solve the fractions are + + using three fraction calculator.
Solution:
Given fractions are 4/2 + 7/3 + 8/7.
we get this answer when we use three fraction calculators decimal values.
Step 1:
In three fraction calculator First cal 4/2 and then press enter button
Step 2:
In three fraction calculator press addition button, and Press 7/3 and press enter button
We get the value is
Step 3:
Then press addition button, and press 8/7.
Step 4:
In three fraction calculators finally enter the calculate button , and then we get the answer,

Thursday, August 12, 2010

online geometry homework


Here we are going to see the article s online geometry homework answer help, generally geometry is the study about the shapes and their relationships and Online means it is one of the new way of connectivity it is used for connect the two or more person in a same time from that they do the conversation through the computer, web like that. Here the student can receive help from the tutor.

Thursday, July 8, 2010

Triangle Vertice

Triangle Vertice:

From the vertices of the triangle we can calculate the distance of the two vertices of the triangle. By using the value of the side length we can calculate the area of the triangle using the formula,
A = sqrt[s(s - a)(s - b)(s - c)]
where,
s = (a + b + c)/2 and a,b,c are the length of the three sides of the triangle.
In case of right triangle we can calculate the sides of a triangle ABC using the Pythagoras theorem,
AC2 = AB2+BC2.
Triangle Vertices
Also the angle values using the relations,
Sin θ = opposite/hypotenuse
Cos θ = adjacent/ hypotenuse
Tan θ = adjacent/opposite.

In a equilateral triangle the height of triangle or altitude is the distance from one vertex to the mid point of the opposite side. It can be calculated by taking mid point of two sides and finding the distance between this point and the third vertex.
The formula for finding the distance between any two vertices (x1,y1), (x2,y2)of the triangle is given by,
Distance = √[(x2-x1)2+( y2-y1)2]