Monday, August 1, 2011

Round decimals

Let's learn the concept of round decimals in today's learning.

Rounding decimals involve few steps and these are listed below:

Step 1) Identify the decimal point.
Step 2) If the immediate number after decimal point is 5 or more than 5, round it by adding 1 to it.
Step 3) If the immediate number after decimal point is less than 5 than, round it to the same number removing the value after decimal point.

Decimals can be rounded to the nearest tens, hundredths, thousandths and so on. To understand this better, one has to be clear about the decimals and place value concept. 

Thursday, July 28, 2011

Hypothesis testing Statistics

In a research hypothesis testing , a hypothesis is an optional detail of a phenomenon. A null hypothesis is a hypothesis that a researcher aims to challenge. Usually, the null hypothesis denotes the current vision/explanation of a feature of the world that the researcher needs to check.

Next time i will share with you a helping hand with critical value statistics.

Tuesday, September 7, 2010

square root of 45

In this blog we will learn about square root of 45,
Method 1: square root of 45
Solution:



Thus, the general property of square root is shown. Next we will learn about simplifying radicals calculator, The meaning of the radical is defined as the square root that is “ROOT “. A radical is used to refer the irrational number. This radical expression has been denoted in the root symbol “√ “. This is the radical representation of the particular number. Here we are going to see about the radical simplification.

factor rules

In this blog we will learn about factor rules, Factoring is the method of uncovering out the multiples of an reflexion. The locution may be algebraic equalisation or a actual lottery. It is suchlike making an reflexion into simpler one by splitting them with procreation. There are more factoring rules and also there are umpteen formulas factor rules. Here the rules are bicameral into four types which are Largest Unwashed Cipher (GCF), four damage, tierce terms and two constituent Expressions.Next we will learn about partial derivative calculator,Unfair figuring of a work having several variables , is characterized as reckoning of the part with consider to one of the variables keeping else variables as unceasing.

For information , supppose f is a work in x and y then it leave be denoted by f(x,y).

So, unfair differential of f with tenderness to x instrument be ?f?x holding y terms as continuous. Translate as kinky f / ringleted x or del f / del x

Tone that its not dx , instead its ?x.

?f?x is also legendary as fx.In the next blog we will learn about geometric formulas.

substitution method

In this blog we will learn about substitution method,In algebra, we use the switch method to solve systems of equalization. In there, we score two unknown variables. We lick two undiscovered variables using transposition method. Commutation method is also misused to regain chartless variables for statement problems.

Steps to solve substitution method,

1.Forward we discriminate anyone versatile from anyone equalisation, then we equivalent that into another equalization.

2.Lick for that varied.

3.Then we compeer the view of unsettled in any one innovative equalization, determine for added star.

Let us see several sample problems.Polynomial calculator is used to solve many equations.

Monday, August 16, 2010

Statistics Problems

Depending on the students needs and the problem they have on hand the students search for these online answers.Usually students search for these problems online because they are given number on problems on various topic as homework,one such example is geometry homework,in the next blog we will highlight some worked examples of solved statistics problems.

Friday, August 13, 2010

Understanding Trigonometry

Trigonometry is a branch of arithmetic that studies triangles, right triangles. Their is another way to get help on the understanding of trigonometry and that is trigonometry online.Trigonometry deals with relationships between the sides and the angles of triangles, and with trigonometric functions, which describe those relationships and angles in general, and the motion of waves such as sound and light waves.Trigonometry tutor usually give us the help that we cannot get in online books they can help us to solve the problem step by step.In the next blog we will learn about online trigonometry tutoring. 

Get help on statistics

Statistics is a one-number description of a set of information, or numbers used as measurements or counts - lenghts of arms, number of days, number of fish in a catch - or, seldom, a number in that set,it is very difficult to get help on statistics answers solved,also to get a statistics tutor is a big task, usually it is also very difficult to get help on statistics homework help free,in the coming blogs we will learn about online statistics homework help.

Thursday, August 12, 2010

Get help with Pre algebra

We can get pre algebra homework online, many students come online to get help and mainly it is maths help. Pre algebra homework is a branch of mathematics. Pre algebra covers everything in our day to day life. Pre algebra homework help covers the four basic operations such as addition, subtraction, multiplication and division. Pre algebra homework help covers the most important terms, such as variables, constant, coefficients, exponents, terms and expressions. Also free Pre algebra homework help teach us to use the symbols and alphabets in the place of unknown values, to create the expressions and equations. Therefore, students are getting Pre algebra homework help very interactively and efficiently.

Looking for online geometry help

Geometry is the mathematics of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids.Geometry is a part of mathematics concerned with questions of size, shape, relative position of figures, and the properties of space. Geometry is one of the oldest sciences. Initially a body of practical knowledge concerning lengths, areas, and volumes, in the 3rd century BC geometry was put into an axiomatic form by Euclid, whose treatment- Euclidean geometry- set a standard for many centuries to follow.

Get algebra help online

Most of the times parents and guardians are faced with the problem of finding the right mentor for their children,who can help them with their home work on a regular basis, algebra homework helper is usually very hard to find.Algebra problems can be solved if we will learn certain formulas.

If the right type of tutor is arranged to then help can also be got on topics like statistics homework,
The statistics is defined as a process of analysis and organize the data. The statistics has a mean, deviation, variance and standard deviation. The process of finding the mean deviation about median for a continuous frequency distribution is similar as we did for mean deviation about the mean. It is a technology to collect, manage and analyze data. In the coming blogs we will learn about factoring quadratics.

Saturday, July 31, 2010

Congruent Angles

Congruent Angles:Let us learn about Congruent Angles,Congruence angles are angles having equal measure. Angle plays a wide role in geometry. Many geometric figures are specified with there angles.In geometry, two figures are congruent if they have the same shape and size. More formally, two sets of points are called congruent if, and only if, one can be transformed into the other by an isometry,i.e.,a combination of translations, rotations and reflections.In the coming blogs we will learn about linear equation.

Types of Lines



Types of Lines:In this blog let us learn about types of Lines,these three are the most important types of lines in math.Parallel line,Perpendicular line, and Intersecting line.Now that we have understood about types of lines we will learn about product rule.

Fundamental Theorem of Calculus

Fundamental Theorem of Calculus:The fundamental theorem of calculus 1 handled the differentiation, integration and inverse operations are process here now.Significant of Fundamental Theorem of Calculus 1:-Let [f(x)] is a continuous function on the closed interval [[a, b]] .Let the area function [ A(x)] be defined by [A(x) = int_a^xf(x)dx for xgt=a].Then [A'(x) = f(x)] for all [x in [a,b]].Let [f(x)] be a continuous function defined on an interval [[a,b].].If [ intf(x)dx = F(x)] then [ int_a^a f(x)dx = F(x)]^b_a =F(b) - F (a) ] is called the definite integral or [f (x) ] among the limits [a] and [b].This declaration is also known as fundamental theorem of calculus 1.We identify [b] the upper limit of [x] and [a] the lower limit.If in place of [F(x)] we take [F(x) +c ] as the value of the integral, we have:[= [F (b) + c] - [F (a) + c]]

[= F (b) + c - F (a) - c]

[= F (b) - F (a)] .

Thursday, July 29, 2010

Fifth Grade Math


--> Fifth Grade Math:Let us see one example of fifth grade math,we can solve one problem here, 1. Find the value of s in the given expression if t = 10. s= t
Solution
Given t = 10
The equation is s = t
s = t + 12
Substitute the value of t
s= 10+12
s = 22.Let us now learn the definition of an acute angle,acute definition- The acute angle is the type of angle which measures the angle between 0 to 90 degree and less than the 90 degree. I hope the above explanation was useful.

Saturday, July 24, 2010

Regular Polygon



Regular Polygon:A polygon is a 2-dimensional object; it is a plane shape with straight sides.Commonly A Regular Polygon has included the following two conditions: All sides are equal, and all angles are equal.Examples for regular polygons: Like that triangles, squares (quadrilateral), pentagons, hexagons and so on.The area of polygon measures the size of the region enclosed by the polygon. This is usually expressed in terms of some square unit.The area regular polygon is equal to the number of triangles formed by the radii times their height.Hope you like the above example of Regular Polygon.

Saturday, July 17, 2010

Area of a Circle


Area of a circle:Introduction to area of a circle:Area is the measure of surface occupied by an object. The standard unit for measurement of area is metres quare (m2).However the area of smaller dimensions can be expressed in mm2 or cm2. The areas of large dimensions can be expressed in acre or hectare.We can find the area of a circle by using the formula as, A=πr2.Here r is the radius of a circle.It is easy to find the area of a circle by applying the formula given above.Hope you like the above example of Area of a circle.Please leave your comments, if you have any doubts.

Algebra equation


Algebra equation solver:Let us understand what we mean by the concept of algebraic equation.Every algebraic equation of degree n ≥ 1 has a root real or complex.An algebraic equation solver is a statement where two algebraic expressions are equal.We can understand this concept better with the help of an Algebra equations examples.
Some Problems:

1) Sum of a number and three is 5

Solution: x+3 = 5 where x is the number


Friday, June 25, 2010

Vertical Tangent


Vertical Tangent:

In geometry, the tangent line (or simply the tangent) to a curve at a given point is the straight line that "just touches" the curve at that point (in the sense explained more precisely below). As it passes through the point where the tangent line and the curve meet, or the point of tangency, the tangent line is "going in the same direction" as the curve, and in this sense it is the best straight-line approximation to the curve at that point.


In mathematics, a vertical tangent is tangent line to be vertical. Since a vertical line contain infinite slope, a function whose graph contain a vertical tangent be not differentiable on the point of tangency. During the definition of the slope, vertical lines are excluded. Although from a simply geometric point of view, a curve might contain a vertical tangent. Imagine of a circle (with two vertical tangent lines). We still contain an equation, namely x=c, except it be not of the form y = ax+b.In fact, such tangent lines contain an infinite slope.
Limit Definition of Vertical Tangent

A function ƒ have a vertical tangent on x = a. Condition the difference quotient use to identify the derivative have infinite limit:

[lim_(h->0)(f(a+h)-f(a))/(h)=+oo] (or [lim_(h->0)(f(a+h)-f(a))/(h)=-oo]

The first case corresponds toward an upward-sloping vertical tangent, with the second case toward a downward-sloping vertical tangent. Easily speaking, the graph of ƒ have a vertical tangent at x = a condition the derivative of ƒ on a be either positive or negative infinity.



Used for a continuous function, it is often possible toward detect a vertical tangent through taking the limit of the derivative.

if [lim_(x->a)f'(x)=+oo]

After that ƒ have to contain an upward-sloping vertical tangent at x = a. In the same way, if

if [lim_(x->a)f'(x)=-oo]

then ƒ have to contain an downward-sloping vertical tangent at x = a. Within these situations, the vertical tangent toward ƒ appears since a vertical asymptote on the graph of the derivative.Let us now look at few examples of Vertical Tangents.

Examples of Vertical Tangent

Example 1 for vertical tangent

The function

[f(x) = root(4)(x)]

have a vertical tangent at x = 0, while it is continuous also

[lim_(x->0)f'(x)=lim_(x->0)(1)/root(4)(x^2)=oo]

[g(x)=root(4)(x^2)]

Have a vertical cusp on x = 0, given that it be continuous,

[lim_(x->0)g'(x)=lim_(x->0)(1)/root(4)(x)=+oo]

[lim_(x->0^-)g'(x)=lim_(x->0^-)(1)/root(4)(x)=-oo]

Example 2 for vertical tangent

What value of x does the function (you mean the graph of the equation) 5x^2+2xy+y^2=36 have a vertical tangent line?

Solution

5x^2 + 2xy + y^2 = 36
and put y = -x
5x^2 - 2x^2 + x^2 = 36
4x^2 = 36
x^2 = 9
x = +3,-3


Hope you like the above example of Vertical Tangent.Please leave your comments, if you have any doubts.

Angles












Angles:


In geometry, an angle is the figure formed by two rays sharing a common endpoint, called the vertex of the angle. The magnitude of the angle is the "amount of rotation" that separates the two rays, and can be measured by considering the length of circular arc swept out when one ray is rotated about the vertex to coincide with the other (see "Measuring angles", below). Where there is no possibility of confusion, the term "angle" is used interchangeably for both the geometric configuration itself and for its angular magnitude (which is simply a numerical quantity).

The word angle comes from the Latin word angulus, meaning "a corner". The word angulus is a diminutive, of which the primitive form, angus, does not occur in Latin. Cognate words are the Greek (ankylοs), meaning "crooked, curved," and the English word "ankle." Both are connected with the Proto-Indo-European root *ank-, meaning "to bend" or "bow".

Let OA and OB two half lines with common end point O. The half lines OA and OB are the sides of an angle and the point O is the vertex of the angle. An angle is an amount of rotation of a half-line (or ray) in a plane about its end point from an initial position to a terminal position.We usually come across the questions such as how to measure an angle,what are the various methods to measure and angle etc,the explanation to these questions is given below.



Measurement of angle

The amount of rotation from initial side to terminal is called the measure of an angle.
Positive and Negative angles

Angles that are formed by counter clockwise (anti clockwise) rotation, such as the one shown in fig (ii) are said to be positive or to have positive measure.
Angles that are formed by a clockwise rotation, like the one in fig(iii) are said to be negative or to have negative measure.
Lines at right angles

The lines are said to be at right angles if the rotating half line (or ray) from starting from initial position to the final position describes one quarter of a circle.


Hope you like the above example of Angles.Please leave your comments, if you have any doubts.