A variable expression is an expression which contains variables(symbol that represents a certain value). For example, 4a-90. 4a-90 would be the expression an a is a variable
what is a varable
An "Indepndent Variable" is something in the expieriment that can be changed. And a "Dependent Variable" is something that doesn't change.
Something you would either keep the same or change during a practical, to ensure the experiment is a fair test.
controle depenent independent
varable
independend varable (<>)
remove the varable speed pulley-replace both belts re-install varable speed pulley--your done.
Something that dose not change in an experiment, that the results are compared too.
A liquid has a variable shape and a definite volume.
Replace each variable in the expression by its value and then find the value of the expression.
This expression means " You mean everything in the whole world to me. " A very romantic expression of love.
mean*