Question

Calculate the product below and give your answer in scientific notation.
\[ \large{\left(800 \right) \times \left(3\times 10^{-1} \right) =\ ?} \]

Answer 1

To calculate the product \( (800) \times (3 \times 10^{-1}) \), we can first simplify \( 800 \) in terms of scientific notation.

The number \( 800 \) can be written as:
\[
800 = 8 \times 10^2
\]
Now, we substitute this form into the expression:
\[
(800) \times (3 \times 10^{-1}) = (8 \times 10^2) \times (3 \times 10^{-1})
\]

Next, we multiply the coefficients (8 and 3) together, and the powers of ten separately:
\[
(8 \times 3) \times (10^2 \times 10^{-1}) = 24 \times 10^{2 - 1} = 24 \times 10^1
\]

Now, we convert \( 24 \times 10^1 \) into proper scientific notation. In scientific notation, we express \( 24 \) as \( 2.4 \times 10^1 \):
\[
24 \times 10^1 = 2.4 \times 10^{1 + 1} = 2.4 \times 10^2
\]

Hence, the final product in scientific notation is:
\[
\boxed{2.4 \times 10^2}
\]