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4 plus 5ix plus yi Which values of x and y would make the following expression represent a real number?
Wiki User
∙ 9y ago
If you want to ask questions about the "following", then I suggest that you make sure that there is something that is following.
Wiki User
∙ 9y ago
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To evaluate a variable expression you must do what to values for the variable?
You must substitute values for the variable.
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
What values of x make the expression 5-xx(x-2) undefined?
Which of these values of x make the expression undefined? 5-x/x(x-2)
What is an expression with variable?
It is an expression that has some letters or symbols which can take a different values.
Is x a term?
Yes, as there are no other values in the expression.
What is arithmetic expression . mention different types of arithmetic expressions?
An expression that represents a numeric value. Other types of expressions can represent character or Boolean values.
What do letters and number represent in Microsoft Excel?
They can represent values in cells. They also can represent columns (letters) and rows (numbers).
Which of the following Ka values represent the weakest acid?
Ka= 1.62 x 10-12
What does it mean to evaluate an expression?
To evaluate an expression is nothing but to operate the given expression according to the operators given in the expression if it is evaluable i.e, it could be convertable.
If a binary number needs to represent 16 different values how long must the number be in bits?
4 bits
Which of the following is true about 1 bit Can represent decimal values 0 and 9 Can be used to represent one character in the lowercase English alphabet Represents one binary digit Four binary?
Neither of the following are true about 1 bit, it can not represent decimal values 0 and 9 nor can it be used to represent one character in the lowercase English alphabet and one binary digit four binary. A true statement would be that 1 bit is represented by the decimal values 0 or 1.
What is the quoitent of 12 and a number?
This expression is expressed as 12 / x where x is any number. You select a variable and then, set up the expression. Since we have a quotient of two values, you are dividing the numbers altogether.
What is the y-intercept of the line represented by the equation below y-2x-1?
-1
If a binary number needs to represent 10 different values how long must the numbers be in bits?
4
What is the difference between 7 less than a number and 7 is less than a number?
7 less than a number is an algebraic expression. Given the number the expression can be evaluated. 7 is less than a number is a statement in the form of an inequality. It is true for some values of the number and not for others.
How can you represent values using variables?
You can represent values using variables. This can only be done with whole numbers.
How are the values of the 5s in each number related 5.005 0.355?
In the first expression the value is 91 times as large as it is in the second.
