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answer it pleasse will give 15 points

Answer It Pleasse Will Give 15 Points class=

Sagot :

Answer:

A. Express the total population of bacteria from both samples in scientific notation. (Correct answer with a detailed solution will earn 2 points)

Solution:

  • Convert the populations to a common exponent:
  • First sample: 3.2 x 10⁷ bacteria
  • Second sample: 5.4 x 10⁶ bacteria = 0.54 x 10⁷ bacteria
  • Add the populations:
  • Total population = (3.2 x 10⁷) + (0.54 x 10⁷) = 3.74 x 10⁷ bacteria

Therefore, the total population of bacteria from both samples is 3.74 x 10⁷ bacteria.

B. During an experiment, the biologist found that the bacteria population in the first sample increased by a factor of 2.5 x 10³. Calculate the new population of bacteria in the first sample and express the result in scientific notation. (Correct answer with a detailed solution will earn 2 points)

Solution:

  • Multiply the original population by the factor of increase:
  • New population = (3.2 x 10⁷) * (2.5 x 10³)
  • Multiply the coefficients and add the exponents:
  • New population = (3.2 * 2.5) x 10⁽⁷⁺³⁾ = 8 x 10¹⁰ bacteria

Therefore, the new population of bacteria in the first sample is 8 x 10¹⁰ bacteria.

HOPE THIS HELPS.