# Onlinemath4all.com how to use, tutorial

### Easy Way to Learn Geometry Formulas - onlinemath4all

**Details: **If you have any feedback about our math content, please mail us : [email protected] We always appreciate your feedback. You can also visit the following web pages on different stuff in math.

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### Easy Way to Learn Tables from 11 to 20

**Details: **To learn times tables from 11 to 20 easily, first you have to have to remember the product of any singe digit number by another single digit number.

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### How to Find the Function From the Derivative

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### Writing an Equation from a Table - onlinemath4all

**Details: **We can use the information from a table to write the equation that represents a given situation without drawing the graph. Example 1 : Elizabeth’s cell phone plan lets her choose how many minutes are included each month. The table shows the plan’s monthly cost y for a given number of included minutes x. Write an equation in slope-intercept form to represent the situation.

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### Vertical Expansions and Compressions - onlinemath4all

**Details: **How to Do Vertical Expansions or Compressions in a Function. Let y = f(x) be a function. In the above function, if we want to do vertical expansion or compression by a factor of "k", at every where of the function, "x" co-ordinate has to be multiplied by the factor "k".

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### Square Root by Long Division Method - onlinemath4all

**Details: **In this section, you will learn, how to find square root of a number step by step. Let us find the square root of 104976 step by step using long division method.

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### WRITE VARIABLE EXPRESSIONS - onlinemath4all

**Details: **About "Write variable expressions" Write variable expressions : A variable is a letter or symbol used to represent an unknown or unspecified number. The value of a variable may change.

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### IDENTIFY THE TERMS AND COEFFICIENTS - onlinemath4all

**Details: **About "Identify the terms and coefficients" Identify the terms and coefficients : A single variable or a constant or a combination of these as a product or quotient forms a term. Terms can be added or subtracted to form an expression.

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### Converting Mixed Fractions to Decimals - onlinemath4all

**Details: **Converting Mixed Fractions to Decimals - Practice Problems with Answers. Problem 1 : Covert the following mixed fraction to decimal. 3 3/20. Solution :

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### PROBABILITY FOR ROLLING 2 DICE - onlinemath4all.com

**Details: **Let us understand the sample space of rolling two dice. For example, (4, 3) stands for getting "4" on the first die and and "3" on the second die.

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### 90 Degree Clockwise Rotation

**Details: **When we rotate a figure of 90 degrees clockwise, each point of the given figure has to be changed from (x, y) to (y, -x) and graph the rotated figure.

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### Adding Fractions with Whole Numbers - onlinemath4all

**Details: **We can follow the steps given below to add a fraction and a whole number. Step 1 : Multiply the denominator and whole number. Step 2 : After having multiplied the denominator and the whole number, take the denominator as a common denominator.

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### How to Find Equation of Normal to the Curve

**Details: **In mathematics the word ‘normal’ has a very specific meaning. It means ‘perpendicular’ or ‘at right angles’. The normal is then at right angles to the curve so it is also at right angles (perpendicular) to the tangent.

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### Finding the Area of a Composite Figure - onlinemath4all

**Details: **A composite figure is made up of simple geometric shapes. To find the area of a composite figure or other irregular-shaped figure, divide it into simple, non overlapping figures. Find the area of each simpler figure, and then add the areas together to find the total area of the composite figure. Example 1 :

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### Write a Polynomial from its Roots - onlinemath4all

**Details: **Root is nothing but the value of the variable that we find in the equation.To get a equation from its roots, first we have to convert the roots as factors.

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### How to Find the Locus of a Point - onlinemath4all

**Details: **After having gone through the stuff given above, we hope that the students would have understood "How to Find the Locus of a Point".Apart from the stuff given above, if you want to know more about "How to Find the Locus of a Point". Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

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### 90 Degree Counterclockwise Rotation Rule

**Details: **Example 3 : Let D (-1, 2), E (-5, -1) and F (1, -1) be the vertices of a triangle.If the triangle is rotated 90° counterclockwise, find the vertices of the rotated figure and graph.

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### Roster Form and Set Builder Form - onlinemath4all

**Details: **Roster Form : Listing the elements of a set inside a pair of braces { } is called the roster form. (i) Let A be the set of even natural numbers less than 11.

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### Shifting the Graph Right or Left Examples

**Details: **Shifting the Graph Right or Left Examples. The procedure for shifting the graph of a function to the right is illustrated by the following example: Question 1 : Define a function g by g(x) = f(x − 1), where f is the function defined by f(x) = x 2, with the domain of f the interval [−1, 1]. (a) Find the domain of g.

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### COMPARING VALUES OF EXPRESSIONS - onlinemath4all

**Details: **Example 1 : The Tigers, a football team, must gain 10 yards in the next four plays to keep possession of the ball. The Tigers lose 12 yards, gain 5 yards, lose 8 yards, and gain 14 yards. Do the Tigers maintain possession of the ball ?

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### HOW TO FIND SELLING PRICE - onlinemath4all

**Details: **After having gone through the stuff given above, we hope that the students would have understood "How to find selling price ".Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

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### Barrel Volume Calculator - onlinemath4all

**Details: **The calculator given in this section can be used to find the volume and capacity of a barrel like shown below.

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### Divisibility Rule for 8 - onlinemath4all

**Details: **Divisibility Rule for 8 - How to check whether a number is divisible by 8 - Examples

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### Converting Standard Form to Scientific Notation

**Details: **To learn how to convert a number from standard form into scientific notation, Please click here. Example 1 : Write the following number in scientific notation.

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### How to check whether the given points form a right triangle

**Details: **If you have any feedback about our math content, please mail us : [email protected] We always appreciate your feedback. You can also visit the following web pages on different stuff in math.

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### Estimate Area Under Curve Using Midpoint Riemann Sums

**Details: **Consider the function y = f(x) from a to b. This means that S illustrated is the picture given below is bounded by the graph of a continuous function f, the vertical lines x = a, x = b and x axis.

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### Domain and Range of Inverse Trigonometric Functions

**Details: **In this section, you will learn how to find domain and range of inverse trigonometric functions. To make you to understand the domain and range of an inverse trigonometric function, we have given a table which clearly says the domain and range of inverse trigonometric functions.

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### Converting between Logarithmic and Exponential Forms

**Details: **If you have any feedback about our math content, please mail us : [email protected] We always appreciate your feedback. You can also visit the following web pages on different stuff in math.

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### How to determine whether a function is one to one or not

**Details: **How to determine whether a function is one to one or not ? Definition of one to one function : Let f : A -> B be a function. The function f is called an one-one function if it takes different elements of A into different elements of B

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### factoring polynomials using algebraic identities

**Details: **On this page "factoring polynomials using algebraic identities",we are going see clear explanation of factoring trinomials with two different variables.

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### Find the Points on the Curve Where the Tangent is Parallel

**Details: **Example 1 : Find at what points on a circle . x 2 +y 2 = 13. the tangent is parallel to the line 2x+3y = 7. Solution : Since the tangent line drawn at the point to the circle is parallel to the given line, their slopes will be equal.

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### Finding Missing Frequency When Mean is Given

**Details: **Question 1 : The mean of the following frequency distribution is 62.8 and the sum of all frequencies is 50. Compute the missing frequencies f 1 and f 2.

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### How to Check Consistency of Linear Equations Using Matrices

**Details: **Step 1 : Find the augmented matrix [A, B] of the system of equations. Step 2 : Find the rank of A and rank of [A, B] by applying only elementary row operations.

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### How to Find the Next Three Terms in a Sequence

**Details: **Question 1 : Find the next three terms of the following sequence. (i) 8, 24, 72, … Solution : To find the next three, first we have to find out the pattern followed in sequence.

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### HOW TO ADD LINEAR EXPRESSIONS - onlinemath4all

**Details: **After having gone through the stuff given above, we hope that the students would have understood "How to add linear expressions ".. Apart from the stuff given above, if you want to know more about "How to add linear expressions", please click hereApart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

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### Comparing Two Sets of Data Using Mean and Standard Deviation

**Details: **The highest variation is in the subject Science and lowest variation is in the subject Social science. Example 2 : The temperature of two cities A and B in a winter season are given below.

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### Find the Slope of a Line From the Equation

**Details: **We can find the slope of a line from its equation using either of two methods explained below. Method 1 : Slope intercept form equation of a line :

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### Stretch a Graph Vertical or Horizontal Examples

**Details: **Stretching a Graph Vertically or Horizontally : Suppose f is a function and c > 0. Define functions g and h by g(x) = c f(x) and h(x) = f(cx). Then

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### IDENTIFY THE DIRECTION A PARABOLA OPENS

**Details: **About "Identify the direction a parabola opens" Identify the direction a parabola opens : If the parabola is symmetric about x-axis, then we will have square for the variable y.S o the given parabola will open upward or downward.. If the parabola is symmetric about y-axis, we will have square for the variable x.S o the given parabola will open rightward or leftward.

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### Converting Units Using Ratios and Proportions

**Details: **Each relationship in the table can be described by two ratios. For example, because 1 quart = 2 pints, we can write two ratios 1 quart / 2 pints and 2 pints / 1 quart. Practice Problems. Problem 1 : An average human brain weighs 3 pounds. What is this weight in ounces ?Use a proportion to convert 3 pounds to ounces.

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### How to Prove That the Function is Not Differentiable

**Details: **if and only if f' (x 0-) = f' (x 0 +). If any one of the condition fails then f'(x) is not differentiable at x 0.. From the above statements, we come to know that if f' (x 0-) ≠ f' (x 0 +), then we may decide that the function is not differentiable at x 0.. How to Prove That the Function is Not Differentiable - Examples

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### Find Number of Terms in Arithmetic Series Given Sum

**Details: **After having gone through the stuff given above, we hope that the students would have understood, find number of terms in arithmetic series given sum. Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here

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### Construction of Angles Using Ruler and Compass

**Details: **In this section, you will learn how to construct angles using ruler and compass. To construct an angle, we must need the following mathematical instruments.

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### Using Boxplots to Make Inferences - onlinemath4all

**Details: **After obtaining a random sample of a population, we can make inferences about the population. Random samples are usually representative and support valid inferences. We can use box plots to make inferences from a random sample. Box and whisker-plot is the graph used in statistics to represent the central 50% of the values of a data set.

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### Find Equation of Tangent to Parabola

**Details: **A tangent to a parabola is a straight line which intersects (touches) the parabola exactly at one point.

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### Finding associations between variables - onlinemath4all

**Details: **About "Finding associations between variables" Finding associations between variables : We can use conditional relative frequency to check whether there is an association between two variables. Finding associations between variables - Examples

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### Height and Distance Problems in Trigonometry

**Details: **Here, AB represents height of the building, BC represents distance of the building from the point of observation. In the right triangle ABC, the side which is opposite to the angle 60 degree is known as opposite side (AB), the side which is opposite to 90 degree is called hypotenuse side (AC) and the remaining side is called adjacent side (BC).

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### How to Test if The Given Function has Removable Discontinuity

**Details: **Finding Removable Discontinuity At the given point - Examples. Question 1 : Which of the following functions f has a removable discontinuity at x = x 0?If the discontinuity is removable, find a function g that agrees with f for x ≠ x 0 and is continuous on R. (i) f(x) = (x 2 - 2x - 8)/(x + 2), x 0 = -2 . Solution :

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### ADD SUBTRACT AND MULTIPLY LINEAR EXPRESSIONS

**Details: **After having gone through the stuff given above, we hope that the students would have understood "A dd subtract and multiply linear expressions".. Apart from the stuff given above, if you want to know more about "Add subtract and multiply linear expressions", please click here. Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search

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### Find Vertex Focus Directrix and Latus Rectum of Parabola

**Details: **After having gone through the stuff given above, we hope that the students would have understood, "Find Vertex Focus Directrix and Latus Rectum of Parabola".Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

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