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A rational expression is undefined whenever its numerator is zero?
false
Is negative pi rational or irrational?
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.
What fractions are irrational numbers?
If, by fraction, you mean a number which can be written in the form p/q where p and q are integers and q>0, then none of them are irrational.If you mean a number which can be written as x/q where x is real and q is a positive integer, then it is irrational whenever x is irrational.
What is cramer rule?
In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution.
Is help a verb?
Yes, help is used as a verb and also as a noun.I help my kids with their homework whenever I can. (verb)I offered help when my neighbor's car wouldn't start. (noun)
A rational expression is undefined whenever its denominator is zero-?
True
How do you determine the values for which a rational expression is undefined?
A rational expression is not defined whenever the denominator of the expression equals zero. These will be the roots or zeros of the denominator.
Is it true that a rational expression is undefined whenever it's denominator is zero?
Yes, it is true.
When is rational expression undefine or meaningless?
A rational number is any number that can be expressed as a fraction. It becomes meaningless or undefined when the lower number, the denominator, its 0 (zero)
A rational expression is undefined whenever its numerator is zero?
false
Is a rational expression undefined whenever its number is zero?
No. 0/3 is well defined.
When do use denominator in the real world?
Whenever we are dealing with rational fractions.
What situation would one or more solutions of rational equation be unacceptable?
Whenever you solve a rational equation you must make sure the result obtained for an answer does not allow the denominator of one of the rational expressions to assume a value of ZERO, as division by zero is undefined and therefore prohibited. For example if we have 2x/(x-3) =(x2 -9x)/ x when we multiply out by x(x-3) we get 2x(x) = (x2 -9x)(x-3) so 2x2 = x(x-9)(x-3) 2x2 = x(x2 - 12x + 27) 2x2 = x3 - 12x2 + 27x so 0 = x3 - 14x2 + 27x 0 = x(x2 - 14x + 27) so solutions are 0 and 7 + √22 and 7 -√22 but 0 makes right hand side expression have zero in denominator so it is not a solution. We actually have to look at all obtained solutions to be sure they ae not extraneous. Suppose we had obtained a 3 for a solution. That would make the left side denominator equal zero and we would have to dismiss that, if 3 was obtained. The two irrational solutions we have obtained are genuine solutions as neither introduces a zero to a denominator
Does the denominator ever change?
Yes it does: whenever you find an equivalent fraction.
Why does Tom Cruise only act with one facial expression?
cause whenever he sees little boys he makes that facial expression
Is negative pi rational or irrational?
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.
What is division by zero exception?
Since any number divided by zero is undefined, a computer cannot base a calculation on this. Whenever a program attempts to divide by zero, this error is generated.
