Question
Evaluate. Express your answer in scientific notation.
2, point, 7, 9, times, 10, cubed, plus, 5, point, 3, 1, times, 10, cubed
2, point, 7, 9, times, 10, cubed, plus, 5, point, 3, 1, times, 10, cubed
Answers
GPT-4o mini
To evaluate \(2.79 \times 10^3 + 5.31 \times 10^3\), we first notice that both numbers are expressed with the same power of ten, \(10^3\).
We can combine the coefficients:
\[
2.79 + 5.31 = 8.10
\]
Thus, we can express the sum in scientific notation:
\[
8.10 \times 10^3
\]
The final answer is:
\[
\boxed{8.1 \times 10^3}
\]
(Note: In scientific notation, we typically round to two significant figures, resulting in \(8.1 \times 10^3\) instead of \(8.10 \times 10^3\).)
We can combine the coefficients:
\[
2.79 + 5.31 = 8.10
\]
Thus, we can express the sum in scientific notation:
\[
8.10 \times 10^3
\]
The final answer is:
\[
\boxed{8.1 \times 10^3}
\]
(Note: In scientific notation, we typically round to two significant figures, resulting in \(8.1 \times 10^3\) instead of \(8.10 \times 10^3\).)