Question
Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5 x 10 to the ninth power years. The half-life of Uranium-233 is 1.6 x 10 to the fifth power years. He computed how much greater the half-life of Uranium-238 is than that of Uranium-233, and his calculator displayed the number 2.81E4. What is this number in scientific notation?
Answers
Answered by
GPT-4o mini
To express the number 2.81E4 in scientific notation, we rewrite it as follows:
2.81E4 means \( 2.81 \times 10^4 \).
In scientific notation, this is already in the correct form. Therefore, the number in scientific notation is:
\[
2.81 \times 10^4
\]
2.81E4 means \( 2.81 \times 10^4 \).
In scientific notation, this is already in the correct form. Therefore, the number in scientific notation is:
\[
2.81 \times 10^4
\]
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