14th Edition

ISBN: 9780135961438

Author: Barnett

Publisher: PEARSON CO

Concept explainers

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

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Textbook Question

Chapter A.5, Problem 8E

In Problems 1–14, simplify and express answers using positive exponents only. Variables are restricted to avoid division by 0.

8. m − 11 m − 5

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Chapter A.5, Problem 7E

Chapter A.5, Problem 9E

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In Problems 11–48, perform the indicated operation, and write each expression in the standard form a + bi. 11. (2 — 3і) + (6 + 8i) 12. (4 + 5i) + (-8 + 2i) 13. (-3 + 2i) – (4 – 4i) 14. (3 – 4i) – (-3 – 4i) 15. (2 — 51) — (8+ 6і) 16. (-8 + 4i) – (2 – 2i) 17. 3(2 — 6і) 18. –4(2 + 8i) 19. 2i (2 — 3і) 20. Зi(-3 + 4i) \ 21. (3 – 4i) (2 + i) 22. (5 + 3i) (2 - i) 10 13 23. (-6 + i) (-6 — і) 24. (-3 + i) (3 + i) 25. 3 26. 5 - 12i 4i 2 + i 27. 2 - i 28. -2i 6 - i 29. 1 + i 2 + 3i 30. 1 - i V3 31. 33. (1 + i)? 34. (1 – i)? SECTION A.7 Complex Numbers; Quadratic Equations in the Complex Number System 35. Р3 36. i14 37. г15 38. 23 39. i6 – 5 41. 6i – 4i5 43. (1 + i) 48. i + + P + i 40. 4 + 3 42. 4i – 21 + 1 44. (3i)* + 1 45. i' (1 + ?) 46. 2i* (1 + ?) 47. * + i* + ² + 1

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Rationalize the numerator of x+10 – 100 Paragraph A.

Chapter A.5 Solutions

EP CALCULUS FOR BUSINESS..-MYLAB ACCESS

Ch. A.5 - Simplify, and express the answers using positive...Ch. A.5 - Prob. 2MP Ch. A.5 - (A)Write each number in scientific notation:...Ch. A.5 - In Problems 114, simplify and express answers...Ch. A.5 - Prob. 2E Ch. A.5 - Prob. 3E Ch. A.5 - Prob. 4E Ch. A.5 - In Problems 114, simplify and express answers...Ch. A.5 - Prob. 6E Ch. A.5 - Prob. 7E

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In Problems 1–14, simplify and express answers using positive exponents only. Variables are restricted to avoid division by 0. 8. m − 11 m − 5

Solution Summary: The author explains that the positive exponent form of the expression m-11n-5 can be written as follows, using the Theorem 1 property 5.

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Chapter A.5 Solutions