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Multiply.\newline(3×103)(1×105)(3 \times 10^3)(1 \times 10^5)\newlineChoices:\newline(A) 7×1087 \times 10^8\newline(B) 4×1084 \times 10^8\newline(C) 3×10153 \times 10^{15}\newline(D) 3×1083 \times 10^8

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Q. Multiply.\newline(3×103)(1×105)(3 \times 10^3)(1 \times 10^5)\newlineChoices:\newline(A) 7×1087 \times 10^8\newline(B) 4×1084 \times 10^8\newline(C) 3×10153 \times 10^{15}\newline(D) 3×1083 \times 10^8
  1. Group Terms: We have the expression 3×1033 \times 10^3(1×105)(1 \times 10^5). First, we need to group the coefficients and the power terms together.\newlineCoefficients: 33 and 11\newlinePower terms: 10310^3 and 10510^5
  2. Multiply Coefficients: Multiply the coefficients together. What is 3×13 \times 1?\newline3×1=33 \times 1 = 3
  3. Combine Power Terms: Combine the power terms 103×10510^3 \times 10^5 into a single power of 1010. When multiplying powers with the same base, we add the exponents.\newline103×105=103+5=10810^3 \times 10^5 = 10^{3 + 5} = 10^8
  4. Write in Scientific Notation: We have found the coefficient to be 33 and the power term to be 10810^8. Now, we write the final answer in scientific notation by substituting 33 for the coefficient and 88 for the exponent.\newlineScientific notation: 3×1083 \times 10^8

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