Testbank: Prealgebra (2nd Edition, 2011) Solutions Manual – Rusczyk | Full Step-by-Step Answers

Prealgebra (2nd Edition, 2011) – Solutions Manual –
by Rusczyk


square root - answer-...of x is a number whose product when multiplied by itself is x; the
opposite of "squaring" a number which is multiplying a number by itself



11.1 - answer-positive square root symbol; every positive number has two square roots (a
positive one and a negative one); also called the principal root



11.1 - answer-radical sign (number under the sign is called the "radicand")



11.1 - answer-square roots of negative numbers do not exist in the real number system; only
way to get a negative number is multiply a negative by a positive (not the same number so not
a square root)



perfect square 11.1 - answer-integer that is the square of another integer



irrational number 11.1 - answer-if x is a positve integer, but not a perfect square, the square
root is not a rational number



11.1 - answer-take individual signs first if each number is under the radical sign; perform the
operation of numbers if all of them (all in the same grouping) are under the same radical sign
(order of operations)



Order of operations 11.1 - answer-(copy chart from book)




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