WGU C784 Questions with 100% Correct Answers (Complete Solutions)

Rational number Correct Answer A number that can be written as a ratio of integers, which means it can be written as a fraction. Product Correct Answer The result of multiplying values. Whole number Correct Answer A number whose value is 0 or greater and can be represented without a fractional or a decimal component. Identity property Correct Answer The property that 0 can be added to any number without changing the value of the number. Likewise, 1 can be multiplied by any number without changing the value of that number. Associative property Correct Answer The property that under certain operations in a multi-step expression, the computations may be done in any order. Commonly represented as (a + b) + c = a + (b + c). Addition and multiplication both have this property, but subtraction and division do not. Perfect square Correct Answer The product of any integer with itself yields this. So, a number is this if it can be written as the square of an integer. For example, 9 is this because 3 * 3 = 9. Other examples are 16, 25, 36, 49,... Set Correct Answer In mathematics: a collection of numbers. Order of operations Correct Answer A set of rules that defines the order in which mathematical operations should be performed Multiplicative inverse Correct Answer The number you must multiply x by to get 1. For example, 5 and 1/5. Principal square root Correct Answer The positive square root of a number. Interval Correct Answer A set of numbers between two specified values. Operators Correct Answer A word or symbol (such as + or -) that indicates an operation between values. Commutative Correct Answer The property that the order of the numbers under the operation does not change the result. Addition and multiplication have this property: a + b = b + a and ab = ba.