By OpenStax

ISBN-10: 1938168372

ISBN-13: 9781938168376

Algebra and Trigonometry presents a complete and multi-layered exploration of algebraic ideas. The textual content is acceptable for a regular introductory Algebra & Trigonometry path, and was once built for use flexibly. The modular technique and the richness of content material guarantees that the ebook meets the wishes of various courses. Algebra and Trigonometry publications and helps scholars with differing degrees of instruction and event with arithmetic. principles are provided as basically as attainable, and development to extra complicated understandings with enormous reinforcement alongside the best way. A wealth of examples - often numerous dozen in line with bankruptcy - supply precise, conceptual motives, which will construct in scholars a robust, cumulative starting place within the fabric prior to asking them to use what they have realized. this can be a full-color textbook.

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**Sample text**

1,000,000,000,000 ← 12 places 1 × 1012 d. 4 × 10−13 m e. 43 × 10−6 Analysis Observe that, if the given number is greater than 1, as in examples a–c, the exponent of 10 is positive; and if the number is less than 1, as in examples d–e, the exponent is negative. Try It #10 Write each number in scientific notation. a. S. national debt per taxpayer (April 2014): $152,000 b. World population (April 2014): 7,158,000,000 c. World gross national income (April 2014): $85,500,000,000,000 d. 00000000334 s e.

9 y Consider the example _5 . Perform the division by canceling common factors. y y·y·y·y·y·y·y·y·y y9 ___ = ___ y · y · y · y · y y5 y · y · y · y · y · y · y · y · y = ___ y · y · y · y · y y·y·y·y = __________ 1 = y 4 Notice that the exponent of the quotient is the difference between the exponents of the divisor and dividend. am ___n = am − n a In other words, when dividing exponential expressions with the same base, we write the result with the common base and subtract the exponents.

92 6. 15−2 7. 32 · 33 −2 10. (5 − 8)0 2 14. 5−2 ÷ 52 9. ( 22) 13. ( 80) 11. 113 ÷ 114 8. 44 ÷ 4 12. 65 · 6−7 For the following exercises, write each expression with a single base. Do not simplify further. Write answers with positive exponents. 10 −2 612 15. 42 · 43 ÷ 4−4 16. ___ 9 17. ( 123 · 12) 18. 1 06 ÷ (1010) 6 5 −6 −3 19. 7 · 7 20. ( 33 ÷ 34) For the following exercises, express the decimal in scientific notation. 21. 0000314 22. 148,000,000 For the following exercises, convert each number in scientific notation to standard notation.

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