SOLUTION: One common use of positive and negative exponents is in writing numbers as scientific notation. For example 0.000052 can be written as 5.2 × 10-5. A) Use scientific notation and th

Algebra ->  Square-cubic-other-roots -> SOLUTION: One common use of positive and negative exponents is in writing numbers as scientific notation. For example 0.000052 can be written as 5.2 × 10-5. A) Use scientific notation and th      Log On


   

Question 192723: One common use of positive and negative exponents is in writing numbers as scientific notation. For example 0.000052 can be written as 5.2 × 10-5. A) Use scientific notation and the laws of exponents to evaluate (0.000048)(0.0000035)(0.00014). Leave your answer in scientific notation. B) If a space probe travels at 100 kilometers per second for 12 years, how far will it travel? Write your answer in scientific notation. (Assume 1 year = 365 days)
Scientific Notation: A number is expressed in scientific notation when it is in the form
a × 10n
where a is greater than or equal to 1 but less than 10 and n is an integer.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A) Use scientific notation and the laws of exponents to evaluate (0.000048)(0.0000035)(0.00014). Leave your answer in scientific notation.
(4.8x10^-5)(3.5x10^-6)(1.4x10^-4) = 2.352x10^-14
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B) If a space probe travels at 100 kilometers per second for 12 years, how far will it travel? Write your answer in scientific notation. (Assume 1 year = 365 days)
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seconds in 12 years: 12*365*24*60*60 = 3.784x10^8
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distance covered at 100 km per sec. = 3.784x10^10
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Cheers,
Stan H.