By Mark Dugopolski

ISBN-10: 0073533521

ISBN-13: 9780073533520

**Algebra for college kids, 5e **is a part of the most recent choices within the winning Dugopolski sequence in arithmetic. The author’s target is to give an explanation for mathematical ideas to scholars in a language they could comprehend. during this e-book, scholars and college will locate brief, distinct reasons of phrases and ideas written in comprehensible language. the writer makes use of concrete analogies to narrate math to daily studies. for instance, whilst the writer introduces the Commutative estate of Addition, he makes use of a concrete analogy that “the cost of a hamburger plus a Coke is equal to a Coke plus a hamburger”. Given the significance of examples inside of a math e-book, the writer has paid shut cognizance to crucial information for fixing the given subject. Dugopolski contains a double cross-referencing process among the examples and workout units, so irrespective of which one the scholars begin with, they are going to see the relationship to the opposite. eventually, the writer unearths it vital not to basically supply caliber, but in addition an excellent volume of routines and purposes. The Dugopolski sequence is understood for supplying scholars and school with the main volume and caliber of routines in comparison to the other developmental math sequence out there. In finishing this revision, Dugopolski feels he has built the clearest and so much concise developmental math sequence out there, and he has performed so with out comprising the basic info each scholar must turn into winning in destiny arithmetic classes.

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**Extra info for Algebra for College Students**

**Example text**

The number is a rational number. The set of rational numbers is a subset of the set of real numbers. Zero is the only number that is a member of both Q and I. The set of real numbers is a subset of the set of irrational numbers. 44444 . . is a rational number. 212112111211112 . . is a rational number. Every irrational number corresponds to a point on the number line. The intervals (2, 6) and (3, 9) both contain the number 6. com! > Practice Problems > NetTutor > Self-Tests > e-Professors > Videos Exercises U Study Tips V • Note how the exercises are keyed to the examples and the examples are keyed to the exercises.

Since 2 is in A and B, but is not in C, it is placed in the intersection of A and B, but outside C. Check that the remaining numbers are in the appropriate regions. Now you can see from the diagram that the numbers that are in C and in A ʜ B are 4 and 5. So, 7 (A ʜ B) ʝ C ϭ ͕4, 5͖. C A ϭ {1, 2, 3, 4} B ϭ {2, 5, 6, 8} C ϭ {4, 5, 7} You can also see that B ʝ C ϭ ͕5͖. The union of that set with A gives us A ʜ (B ʝ C) ϭ ͕1, 2, 3, 4, 5͖. 6 U6V Applications E X A M P L E 7 Using Venn diagrams An instructor surveyed her class of 40 students and found that all of them either watched TV or surfed the Internet last evening.

This number has been given the name (Greek letter pi). See Fig. 13. 141592654. 14 as an approximate value for . 13 U4V The Real Numbers The set of irrational numbers I and the set of rational numbers Q have no numbers in common and together form the set of real numbers R. The set of real numbers can be visualized as the set of all points on the number line. Two real numbers are equal if they correspond to the same point on the number line. See Fig. 14. 15 illustrates the relationship between the set of real numbers and the various subsets that we have been discussing.

### Algebra for College Students by Mark Dugopolski

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