Answer :
Final answer:
In scientific notation, the number 0.000000000386 is represented as 3.86 times 10 to the negative 10 (3.86 10-¹⁰). This notation is used because we move the decimal point 10 places to the right, resulting in the negative exponent -10.
Explanation:
The question asks which of the following options represents the number 0.000000000386 in scientific notation. The correct representation for this number in scientific notation should be 3.86 followed by a power of 10. We need to move the decimal point 10 places to the right for it to stand beside the first non-zero digit, which is 3. Hence, the scientific notation becomes 3.86 x 10 to the power -10. The negative exponent signifies that the original number was less than one. Based on this explanation, the correct answer is D. 3.86 10-¹⁰.
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