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Add. Write your answer in scientific notation.\newline(3.955×103)+(2.473×103)(3.955 \times 10^3) + (2.473 \times 10^3)\newlineChoices:\newline(A) 9.781×1039.781 \times 10^3\newline(B) 6.428×1036.428 \times 10^3\newline(C) 6.428×1066.428 \times 10^6\newline(D) 9.781×1069.781 \times 10^6

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Q. Add. Write your answer in scientific notation.\newline(3.955×103)+(2.473×103)(3.955 \times 10^3) + (2.473 \times 10^3)\newlineChoices:\newline(A) 9.781×1039.781 \times 10^3\newline(B) 6.428×1036.428 \times 10^3\newline(C) 6.428×1066.428 \times 10^6\newline(D) 9.781×1069.781 \times 10^6
  1. Add Coefficients: Add the coefficients of the given numbers. 3.955+2.473=6.4283.955 + 2.473 = 6.428
  2. Add in Scientific Notation: Since the exponents of 1010 are the same, we can directly add the coefficients and keep the exponent unchanged.\newlineThe sum in scientific notation is 6.428×1036.428 \times 10^3.
  3. Choose Correct Expression: Choose the equivalent expression for the final answer from the given choices.\newlineThe correct choice is (B) 6.428×1036.428 \times 10^3.

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