Q8. - Algebra 1

Question

Express each number in scientific notation.

58,000

Step-by-Step Solution

Answer

58000 Can be written in scientific notation as $\mathbf{5}\mathbf{.}\mathbf{8}\times {\mathbf{10}}^4$.

Step 1. Write steps to convert standard form to scientific notations.

1. Move decimal point to the right until it is the first nonzero digit. It is a real number x.

2. Count the numbers of decimal places m and direction in which decimal point is moved.

3. If the decimal point is moved towards right then write the number as $x\times {10}^{-m}$ and if the decimal point is moved towards left then write the number as $x\times {10}^m$. Remove the unnecessary zeros.

Step 2. Apply steps to convert standard form to scientific notation.

Move decimal point towards left till it reaches first nonzero number and then count the number of decimal places.

$58000\to 5.8000$ 

Number of decimal places, $m=4$.

Step 3. Write a given number in scientific notation.

As the decimal point is moved towards the left, write the number as $x\times {10}^m$.

$5.8\times {10}^4$

Therefore, 58000 can be written in scientific notation as $5.8\times {10}^4$.