describe how to evaluate a variable expression

Which expression has two variables? => x + y + x y or 4 + x or 5 x or 4 + 5..

Which of the following represents a variable expression? => 5 - y or y ≥ 18 or 2 3 + 9 or y - 20 = 35..

Let us consider a situation where the force is acting along the X-axis and the magnitude of the force is varying with position 'x'. Thus, as the ball moves, the magnitude of the work done by the force, on the ball, changes. The adjacent graph shows the plot of a one dimensional variableh..

Thermodynamic variables are the quantities like pressure, volume and temperature, which help us to study the behavior of a thermodynamic system. There are some other thermodynamic variables such as entropy, internal energy, etc., but these thermodynamic variables can b..

A Linear equation is a first degree algebraic expression with one,two or more variables equated to a constant. Graphically a linear equation with one or two variables is a straight line whereas one with three variable represents a plane. A simple linear ..

Variable - Quantities such as height, weight, age, amount can have several different values. Quantities which can assume different numerical values are called variables. Variables are of two types: (a) Continuous (b) Discre..

Quantities such as height, weight, age, amount can have several different values. Quantities which can assume different numerical values are called variables. Variables are of two types: (a) Continuous (b) Discret..

Which of the following operators are used in the variable expression of the statement, "Product of two numbers is decreased by two"? => -, x or +, - or +, x or None of the above..

Which of the following pair of operations is included in the variable expression for the phrase 'eight times a number decreased by six'? => x, - or -, ÷ or x, ÷ or +, -..

Write a variable expression for the phrase "the product of a number and - 8". => - 8 × - n or - 8 × n or - 8 - n or - 8 + n..