Comparing Order of Magnitude A biologist estimated the number of cells in a culture sample as 1.3 * 102. One week later, he looked at the same culture sample and estimated that the number of cells had grown to 3.9 * 105. Determine how many times larger the culture sample was compared to a week earlier. (3.9 * 105) (1.3 * 102) Complete the quotient in scientific notation and find the solution in standard notation. * =

Question

Mathematics

Owens

15 February, 01:28

Comparing Order of Magnitude A biologist estimated the number of cells in a culture sample as 1.3 * 102. One week later, he looked at the same culture sample and estimated that the number of cells had grown to 3.9 * 105. Determine how many times larger the culture sample was compared to a week earlier. (3.9 * 105) (1.3 * 102) Complete the quotient in scientific notation and find the solution in standard notation. * =

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Answers (2)

Know the Answer?

Roberto Mcconnell · Answer 1

the answer is 3 10 to the third power and 3,000

Ryland Mcdaniel · Answer 2

3 * 10^3 in scientific notation.

3,000 in standard notation.

Step-by-step explanation:

We divide:

3.9 * 10^5 / 1.3 * 10^2

= (3.9/1.3) * (10^5 / 10^2)

= 3 * 10 (5-2)

= 3 * 10^3.

This equals 3 * 1,000 = 3000.