Q. Subtract. Write your answer in scientific notation.(4.9×108)−(2.39×108)Choices:(A) 2.51×108(B) 5.71×108(C) 6.03×108(D) 4.84×108
Given Expression: We have:(4.9×108)−(2.39×108)Since the powers of 10 are the same, we can subtract the coefficients directly.What is 4.9−2.39?4.9−2.39=2.51
Subtract and Determine Coefficient: Write the answer in scientific notation.Substitute 2.51 for the coefficient a and 8 for the exponent b in a×10b.Scientific notation: 2.51×108
Write in Scientific Notation: Choose the equivalent expression for (4.9×108)−(2.39×108).(4.9×108)−(2.39×108)=2.51×108(4.9×108)−(2.39×108) is equivalent to 2.51×108.
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