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What is value of an expression?
When you have an algebraic expression with variables in it, you need to know the the value of each variable. The value of the expression is found by replacing the variables with their values and simplifying. For example, evaluate 2xy-3x if x=5 and y=-1. 2xy-3x = 2*5*(-1) -3*5 = -10-15 = -25.
What are examples of exponents?
An exponent is a small, raised number (or symbol, or expression), as in: 53 ab 2xy 105+5 etc.
How will you write 5times5times5times5 as an exponential expression?
The expression (5 \times 5 \times 5 \times 5) can be written as an exponential expression by using the base (5) and the exponent (4), since there are four factors of (5). Therefore, it can be expressed as (5^4).
Factor the trinomial x2 2x - 15?
If the expression is, x2 + 2x - 15 this has factors of (x + 5)(x - 3). If the expression is, x2 - 2x - 15 then the factors are (x - 5)(x + 3)
Is this a binomial 2xy?
No, it's not a binomial. (x + 5) is an example of a binomial. A binomial has more than one term. Just look at the word binomial and you will know why. Bi means two.2xy is a monomial. Mono means one.
Factor the trinomial x2 2x - 15?
If the expression is, x2 + 2x - 15 this has factors of (x + 5)(x - 3). If the expression is, x2 - 2x - 15 then the factors are (x - 5)(x + 3)
What are the factors of this expression 5b 15?
5b + 15 = 5(b + 3)
How many factors does 16 have?
Factors are numbers you can multiply together to get another number. 16: 1, 2, 4, 8, 16 16 has 5 factors.
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
How many factors in 305?
305 has four factors: 1, 5, 61, 305
How many factors does 16 have in all?
The answer is 5. 1,2,4,8,16
How many prime numbers are in 200?
The prime factors of 200 are 2 and 5 or as a product of its prime factors 2*2*2*5*5 = 200
Start with b add x and then multiply the result by 5 what expression do you get?
The expression is: 5(b + x)
How many factors of 10?
There are four factors of 10: 1, 2, 5 and 10.
How Many Factors Does 81 have?
81 has 5 factors: 1, 3, 9, 27, and 81.
What are the terms in the expression 5x3y-634?
The terms in the expression 5 x 3y - 634 are 5, 3y, -634
Which of the following is an exaple of a bionominal 2y 2X y 2xy?
All of these are monomials. The binomials are algebraic expressions consisting of two terms. A term is a constant, a variable, or a combination of constants and variables. 2y, 2x, y, and 2xy consisting of only one term, so they are monomials. Examples of binomials: 2 + 5, 2x + 3, 3x + 7y, 2xyz + 7xy,...
