Write the number 2, point, 8, times, 10, to the power minus 32.8×10

−3
in standard form.

1 answer

To express the number \(2.8 \times 10^{-32.8}\) in standard form, we first need to rewrite the exponent in a more manageable form.

The term \(10^{-32.8}\) can be expressed as follows:

\[ 10^{-32.8} = \frac{1}{10^{32.8}} \]

Calculating \(10^{32.8}\) gives a very large number, and \(10^{-32.8}\) will represent a very small number. To convert it to standard form, we can adjust the exponent.

Recall that \(10^{-32.8}\) can be broken down:

\[ 10^{-32.8} = 10^{-32} \times 10^{-0.8} \]

Now, calculate \(10^{-0.8}\):

\[ 10^{-0.8} \approx 0.1585 \quad (\text{using a calculator}) \]

Now we combine the components:

\[ 2.8 \times 10^{-32.8} = 2.8 \times (10^{-32} \times 10^{-0.8}) = 2.8 \times 10^{-32} \times 0.1585 \]

Now we multiply \(2.8\) and \(0.1585\):

\[ 2.8 \times 0.1585 \approx 0.4438 \]

Thus, we can express our original term as:

\[ 0.4438 \times 10^{-32} \]

To rewrite this in proper scientific notation (standard form), we need to express \(0.4438\) as \(4.438\) multiplied by \(10^{-1}\):

\[ 0.4438 \times 10^{-32} = 4.438 \times 10^{-1} \times 10^{-32} = 4.438 \times 10^{-33} \]

So the final answer in standard form is:

\[ \boxed{4.438 \times 10^{-33}} \]