Algebra for the Utterly Confused by Larry J. Stephens

By Larry J. Stephens

Scholars and execs alike needs to faucet into their wisdom of algebra daily, no matter if it is for the SATs, collage classes, or perhaps the place of work.

Author Larry Stephens provides a super-accessible method of the topic that even the main math-phobic pupil can keep on with, that includes simplified ideas and methods in accordance with real-world difficulties that use the foundations of algebra for his or her recommendations.

Algebra for the totally stressed bargains a effortless, logical, step by step method of the basics of algebra, integrating modern software program as one of many key instruments to aid within the suggestions of the issues, together with MINITAB, Excel spreadsheets, and Maple.

  • Handy icons aid scholars visualize strategies and methods
  • More than two hundred solved difficulties and examples reduction scholars in figuring out algebraic options
  • Summary of key issues for each bankruptcy reinforces lined subject matters

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Use the commutative law of addition to give an equivalent expression for the following: (a) 4 + 8 (b) 2x − 4s (c) a + b 7. Use the associative law of addition to give an equivalent expression for the following: (a) 4 + (2 + 5) (b) (4 + 2) + 5 8. Use the commutative law of multiplication to give an equivalent expression for the following: (a) 25(78) (b) 78(25) 9. Use the associative law of multiplication to find an equivalent expression for the following: (a) 33(13 и 12) (b) (2x и 4x)z 10. Evaluate the expression [2(3) − 5/5 + 6(3 + 4(7))].

Click here for Terms of Use. ALGEBRA FOR THE UTTERLY CONFUSED 36 Function, Domain, and Range Example 3-1: The National Football League is composed of the American Football Conference (AFC) and the National Football Conference (NFC). There are three divisions in each conference and five teams in each division. Table 3-1 gives the standings for the West division of the AFC. 364 A function is a rule that assigns to each element in a set, called the domain, exactly one element in a second set, called the range.

Step 1: Exchange x and y in the given equation. 8y + 32 Step 2: Solve for y. 8 Step 3: Replace y by f −1(x). x − 32 f −1(x) = ᎏ , where x now represents Fahrenheit temperatures. 8 Note that the function is represented by f(x) and the inverse function is represented by f −1(x). 8 to convert Fahrenheit to Centigrade. Example 3-9: Use the three-step procedure to solve Example 3-7. The equation relating distance to time is y = 70x. Functions 45 Step 1: Exchange x and y in the given equation. x = 70y Step 2: Solve for y.

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