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- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/16%3A_Radical_Expressions_and_Quadratic_Equations/16.01%3A_Introduction_to_Roots_and_Rational_Exponents
- https://math.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Claassen_and_Ikeda)/10%3A_Appendix/10.02%3A_Fractions_and_Mixed_Numbers/10.2.01%3A_Introduction_to_Fractions_and_Mixed_Numbers/10.2.1.03%3A_Factors_and_PrimesThat is, the last digit is 0, 2, 4, 6, or 8. (We then say the number is an even number.) For example, in the number 236, the last digit is 6. Although 522 is divisible by 2 (the last digit is even) an...That is, the last digit is 0, 2, 4, 6, or 8. (We then say the number is an even number.) For example, in the number 236, the last digit is 6. Although 522 is divisible by 2 (the last digit is even) and 3 (5+2+2=9, which is a multiple of 3), it is also divisible by 6 and 9. One way to find the prime factorization of a number is to begin with the prime numbers 2, 3, 5, 7, 11 and so on, and determine whether the number is divisible by the primes.
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/11%3A_Exponents_and_Polynomials/11.01%3A_Integer_Exponents
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/zz%3A_Back_Matter/20%3A_GlossaryIf A is an acute angle of a right triangle, then the cosine of angle A is the ratio of the length of the side adjacent to angle A over the length of the hypotenuse. If A is an acute an...If A is an acute angle of a right triangle, then the cosine of angle A is the ratio of the length of the side adjacent to angle A over the length of the hypotenuse. If A is an acute angle of a right triangle, then the tangent of angle A is the ratio of the length of the side opposite angle A over the length of the side adjacent to .
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/15%3A_Rational_Expressions/15.01%3A_Operations_with_Rational_Expressions
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/10%3A_Solving_Equations_and_Inequalities/10.03%3A_Compound_Inequalities_and_Absolute_Value
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/02%3A_Fractions_and_Mixed_Numbers
- https://math.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Claassen_and_Ikeda)/10%3A_Appendix/10.01%3A_Whole_Numbers/10.1.02%3A_Adding_and_Subtracting_Whole_Numbers
- https://math.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Claassen_and_Ikeda)/10%3A_Appendix/10.01%3A_Whole_Numbers/10.1.02%3A_Adding_and_Subtracting_Whole_Numbers/10.1.2.02%3A_Subtracting_Whole_Numbers_and_ApplicationsTo subtract the digits in the hundreds place, regroup 3 thousands as 2 thousands, 10 hundreds and add the 10 hundreds to the 1 hundred that is already in the hundreds place. In addition to subtracting...To subtract the digits in the hundreds place, regroup 3 thousands as 2 thousands, 10 hundreds and add the 10 hundreds to the 1 hundred that is already in the hundreds place. In addition to subtracting using the standard algorithm, subtraction can also can be accomplished by writing the numbers in expanded form so that both the minuend and the subtrahend are written as the sums of their place values.
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/12%3A_Factoring/12.03%3A_Solving_Quadratic_Equations/12.3.01%3A_Solve_Quadratic_Equations_by_FactoringTo find the roots of this equation, apply the Principle of Zero Products and set each factor, (x−5) and (2x+7), equal to 0. x−5=0, so x=5; you also find that 2x+7=0, so...To find the roots of this equation, apply the Principle of Zero Products and set each factor, (x−5) and (2x+7), equal to 0. x−5=0, so x=5; you also find that 2x+7=0, so 2x=−7, and x=−72. When you use the Principle of Zero Products to solve a quadratic equation, you need to make sure that the equation is equal to zero.
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Developmental_Math_(NROC)/01%3A_Whole_Numbers/1.01%3A_Introduction_to_Whole_Numbers/1.1.03%3A_Comparing_Whole_NumbersIn the example below, you can tell that 14 is greater than 8 because 14 is to the right of 8 on the number line. The important thing to remember about these symbols is that the small end points toward...In the example below, you can tell that 14 is greater than 8 because 14 is to the right of 8 on the number line. The important thing to remember about these symbols is that the small end points towards the lesser number, and the larger (open) end is always on the side of the greater number. 230 is greater than 198, and the symbol is pointing in the wrong direction, with the open part facing the lesser number.
