Final answer:
The estimated product of (8.9 × 10^8) and (3.3 × 10^4) is 2.7 × 10^12, but this doesn't match the provided answer choices, indicating an error in the question or the answer options.
Step-by-step explanation:
The student is asking for the best estimate for the product of two numbers written in scientific notation, which are (8.9 × 10^8) and (3.3 × 10^4) . To estimate this, we can round the decimal parts to one significant figure and multiply the coefficients, which gives us 9 × 3 = 27. Next, we add the exponents of 10, which gives us 8 + 4 = 12. Written in proper scientific notation, the result is 2.7 × 10^12. But to match the answer options, which are not precisely labeled, we notice that none exactly match our calculated result, so an error might have occurred in the question's presentation or the answer choices given.