Subtract 2.39 x 102 from 4.16 x 103 and express the answer in scientific notation.

Question

Quizplus · Accepted Answer

To subtract the given numbers in scientific notation, first we need to make sure both numbers have the same power of 10.

4.16 x 10³ = 4160

2.39 x 10² = 239

Now we can subtract:

4160 - 239 = 3921

Finally, we convert the result to scientific notation:

3.921 x 10³ = 3.92 x 10³ (since we round to 2 decimal places)

Therefore, the answer is B.