free exam papers

Let us learn how free exam papers helps students in learning math.

Students are well boasted & well encouraged to view the sample answer sheet so that they are familiar with the way they are required to show their solutions in the test.

These free exam papers, past papers have been published to assist students to familiarize themselves with the format of the test & to provide material which will enable them to develop more effective exam technique. Some features of good exam technique include the ability to manage the allocated test time evenly & the understanding that it is better to guess solution than leave it blank.

There are many website which provides free previous math exam papers for students to help them in learning math better. It enables students to understand & establish the type of questions being asked. Student will learn how to manage your time during the exam

In our next blog we shall learn about nitrogen monoxide formula I hope the above explanation was useful.Keep reading and leave your comments.

formal charge equation

Let us learn about formal charge equation

a formal charge “FC” is referred as the charge assigned to an atom in a molecule, assuming that electrons in a chemical bond are equally shared between atoms, regardless of relative electronegativity.
Formal charge equation:

FC = V - N - B/2

Where as “V” is the number of valence electrons of the atom in isolation. “B” is the total number of electrons shared in covalent bonds with other atoms in the molecule. “N” is referred as the number of non bonding electrons on this atom in the molecule.

C_f = E_v - (E_u + 1/2E_p)

In our next blog we shall learn about expected value formula I hope the above explanation was useful.Keep reading and leave your comments.

gaussian elimination calculator

Let us learn about gaussian elimination calculator

Gaussian elimination calculator is a method to find the inverse of any square matrix. Student simply chooses their matrix’s dimensions & then enters the elements of the matrix student want inverted in the left frame.
Gaussian elimination calculator is a variant of Gaussian Elimination. We are transforming the coefficient matrix into another matrix which is much easier to find solution, & the system represented by the new augmented matrix has the same solution set as the original system of linear equations. In Gaussian elimination calculator, the aim is to transform the coefficient matrix into a diagonal matrix, & the zeros are introduced into the matrix 1 column at a time. We work to eliminate the elements both below & above the diagonal element of a given column in 1 pass through the matrix
In our next blog we shall learn about magnesium chloride formula I hope the above explanation was useful.Keep reading and leave your comments.

biconditional statement

Let us learn about biconditional statement

If 2 simple statements “p” & “q” are connected by the connective. 'if & only if', then the resulting compound statement is said to be as the biconditional statement. Symbolically it is characterized by p<-> q.

An integer is even if & only if it is divisible by two. Then it is biconditional having the truth value T.

The biconditional statement p <->q is true when either both p & q are true or both p & q are false.

A statement is said to be as biconditional when it expresses the idea which presence of some property is a necessary & sufficient condition for the presence of some other property. Such a statement is usually phrased in the terms "P, if & only if Q." The phrase "if & only if" is often abbreviated as iff.

In our next blog we shall learn about self introduction letter sample I hope the above explanation was useful.Keep reading and leave your comments.

perimeter of triangle

Let us learn about perimeter of triangle

The perimeter is the space or distance around a closed plane figure.

The perimeter “P” of a triangle is given by the formula

P = a + b + c
Where a, b & c are the side lengths of the triangle.
Perimeter = a + b+ c. where a, b, and c are sides of triangle.

find the perimeter of a triangle given a = 3 cm, b = 5 cm, and c = 7

P = 3 + 5 + 7 = 15 cm

Find the perimeter when a = 4 cm, b = 8 cm, and c = 12

P = 4 + 8 + 12 = 24 cm

Find the perimeter when a = 1/2 cm, b = 3/2 cm, and c = 6/2

P = 1/2 + 3/2 + 6/2 = ( 1 + 3 + 6)/2 = 10/2 = 5 cm

In our next blog we shall learn about widely used medium I hope the above explanation was useful.Keep reading and leave your comments.

linear programming problem

Linear programming problem below, state the dual problem, solve by the simplex or dual simplex method & also states the solutions to both problems.

1. Maximize x1 − 2x2 − 3x3 − x4 subject to the constraints xj ≥ 0 for all j and

x1 − x2 − 2x3 − x4 ≤ 4

2x1 + x3 − 4x4 ≤ 2

−2x1 + x2 + x4 ≤ 1.

2. Minimize 3y1 − y2 + 2y3 subject to the constraints yi ≥ 0 for all i and

2y1 − y2 + y3 ≥ −1

y1 + 2y3 ≥ 2

−7y1 + 4y2 − 6y3 ≥ 1.

3. Maximize −x1 − x2 + 2x3 subject to the constraints xj ≥ 0 for all j and

−3x1 + 3x2 + x3 ≤ 3

2x1 − x2 − 2x3 ≤ 1

−x1 + x3 ≤ 1.

4. Minimize 5y1 − 2y2 − y3 subject to the constraints yi ≥ 0 for all i and

−2y1 + 3y3 ≥ −1

2y1 − y2 + y3 ≥ 1

3y1 + 2y2 − y3 ≥ 0.

5. Minimize −2y2 + y3 subject to the constraints yi ≥ 0 for all i and

−y1 − 2y2 ≥ −3

4y1 + y2 + 7y3 ≥ −1

2y1 − 3y2 + y3 ≥ −5.

6. Maximize 3x1 + 4x2 + 5x3 subject to the constraints xj ≥ 0 for all j and

X1 + 2x2 + 2x3 ≤ 1

−3x1 + x3 ≤ −1

−2x1 − x2 ≤ −1.

In our next blog we shall learn about list of ionic compounds I hope the above explanation was useful.Keep reading and leave your comments.

integrated algebra regents

Let us learn about integrated algebra regents

The integrated algebra regents contain the fundamental concepts of algebra like simple expressions, rational, linear equations, & radical expressions. Geometry, Algebra, & Trigonometry are included in the parts of integrated algebra regents examination. The integrated algebra regents test gives the clear idea & picture of solving different types of questions.

Calculators like Graphing calculators are required for the Integrated Algebra Regents examination. During the period the administration of the Regents exam, schools are required to make a graphing calculator available for the exclusive use of each learner. You will need to use your calculator to work with evaluate roots, trigonometric functions of angles, & perform routine calculations. Knowing how to use a graphing calculator gives you an advantage when deciding how to solve a problem. Instead than solving a problem algebraically with paper & pen, it may be easier to solve the same problem using a graph or table created by a graphing calculator. A numerical or graphical solution using a calculator can also be used to help confirm a solution obtained using standard algebraic methods.

In our next blog we shall learn about lcao I hope the above explanation was useful.Keep reading and leave your comments.