College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Test: 6

Answer

(a) $186,000,000,000=1.86\times 10^{11}$ (b) $0.0000003965=3.965\times 10^{-7}$

Work Step by Step

(a) To write the number in scientific notation, we count the number of decimal places to move to the right after the first digit: $186,000,000,000=1.86\times 10^{11}$ (b) To write the number in scientific notation, we count the number of decimal places to move to the left from the digit "3": $0.0000003965=3.965\times 10^{-7}$
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