Question

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. × =

Answer 1

Answer:

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.

Answer 2

Answer:

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

Step-by-step explanation: