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TutorNext's online Math tutoring helps you get the desired edge in acing the subject. Get help in understanding algebra , calculus, pre-calculus, geometry , trigonometry, statistics, probability, linear programming, discrete Mathematics across K-12. Whet..
Set theory in day to day life and in mathematics:
In day to day life we use words like a pack of cards, a foot ball team, and herd of sheep to denote collection of objects of a particular kind. In mathematics, we come across words like natural numbers, lines, composite numbers Let us examine some collections: Vowels in Engli..
Q 5: Out of 120 students who secured first class marks in Mathematics or English, 70 obtained first class in Mathematics and 31 in English and Mathematics. How many students secured first class marks in English only?
Solution: Let n(M) = number of students who secured first class marks in Mathematics n(E) = number of students who secured first class marks in English n(M) = 70 n(M $\cup$ E) = 120 n(M $\cap$ E) = 31 Using n(M $\cup$ E) = n(M) + n(E) - n(M $\cap$ E) ..
Solution Of Simple Equations
As we know an equation is a mathematical statement where two expressions are equated. Examples: 2x + 5 = 11 3x - 6 = x + 12 By solution of the above equations we mean finding the values of the variable that satisfies the equation. In this section we will take a look at met..
Get Online Math Problems Solved
Our tutors are experts in helping you with Math Word Problems and solve them online for you. You not only understand Math Word Problems but you can also clarify your Math doubts with our tutors. Our tutoring is like learning from a tu..
How to do math ratios
As we saw ratios are generally written in the form a : b Its important to write this in the lowest form and also the units have to be same. Example 1 The age of Sam is 10 and that of his mother is 32. What is the ratio between Sam and his mothers age? Solution: Ratio between Sam..
pre algebra math equations
) on one side by itself and a number on the other side of the equals sign. The solution should ultimately look like: x=(any number), where x is the unknown variable and (any number) is what is left over after a series of mathematical functions. For example, if you add 14 to the ..
Application of matrices to the solution of linear equations (Martin's rule)
infinitely many solutions. In this case we say that the equations are dependent equations. To help you to remember easily, the above can be summarised diagrammatically as v under: - System: AX= B Find | A | -^-:-1 \A 1*0 M | = o Unique ..
Example 3
(i) In how many ways can 4 books on Mathematics and 3 books on English be placed on a shelf so that books on the same subject always remain together ? (ii) 7 candidates are to be examined - 2 in Mathematics and the remaining in different subjects. In how many ways can they ..
Define the term "pH"; what does" pH" stand for?
The term "pH" is defined as the negative logarithm of H + ion concentration of a given solution; the concentration being expressed as moles per litre. Mathematically pH = - log [H + ] 'pH' stands for: Power of hydrogen ion concentration, 'p' for power and 'H' for H + ion c..