By George Chrystal
This Elibron Classics e-book is a facsimile reprint of a 1904 variation through Adam and Charles Black, London.
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Additional info for Algebra: An Elementary Text-Book for the Higher Classes of Secondary Schools and for Colleges. Part 1
If the speed of light is approximately 186,000 miles per second, estimate the number of miles in one light year. 56 Milky Way galaxy (a) Astronomers have estimated that the Milky Way galaxy contains 100 billion stars. Express this number in scientific form. (b) The diameter d of the Milky Way galaxy is estimated as 100,000 light years. Express d in miles. ) 58 Fish population The population dynamics of many fish are characterized by extremely high fertility rates among adults and very low survival rates among the young.
Approximate the distance that can be seen from the top of the Chicago Sears Tower, which is 1454 feet tall. 46 2 W , where W is in kilograms and L is in meters. The largest documented halibut weighed 230 kilograms. Estimate its length. 43, where W is in tons and L is in feet. Estimate the weight of a whale that is 25 feet long. 99 Weight lifters’ handicaps O’Carroll’s formula is used to handicap weight lifters. If a lifter who weighs b kilograms lifts w kilograms of weight, then the handicapped weight W is given by w Wϭ 3 .
3 ϫ 10Ϫ10 Figure 6 2. 025 I3 or 2. 025 E I3 or 2. 48 ϫ 10Ϫ4 Many calculators use scientific form in their display panels. For the number c ϫ 10n, the 10 is suppressed and the exponent is often shown preceded by the letter E. For example, to find ͑4,500,000͒2 on a scientific calculator, we could enter the integer 4,500,000 and press the x 2 (or squaring) key, obtaining a display similar to one of those in Figure 6. 025 ϫ 1013. Thus, ͑4,500,000͒2 ϭ 20,250,000,000,000. Calculators may also use scientific form in the entry of numbers.