There are 10 true-false Statements in a question paper. How many sequences of answers are possible ?

There are 4 multiple-choice questions in an examination. How many sequence of answers are possible, if each question has 2 choices ?

The digits, from 0 to 9, are written on slips of paper and placed in a box. Three of the Slips of paper are drawn and placed in order. How many different outcomes are possible ?

True or False statements : Every function is invertible.

A Student has to answer 10 questions, choosing at least 4 from each of part A and part B. If there are 6 questions in part A and 7 questions in part B, in how many ways can the student choose 10 questions?

True or False statements : Matrix addition is not associative.

State whether the following statement is true or false, and justify your answers. Some isosceles triangles are equilateral.

True or False statements : Composition of functions is associative.

True or False statements : Subtraction of matrice is commutative.

State whether the following statements are true or false. Give reasons for your answers:- Every integer is a whole number.