Question

Write 5 x 10^-3 as an ordinary number.

Answer 1

To write 5 x 10^-3 as an ordinary number, multiply 5 by 10 raised to the power of -3 and move the decimal point 3 places to the left. The result is 0.005.

Step-by-step explanation:

To write 5 x 10^-3 as an ordinary number, we need to multiply 5 by 10 raised to the power of -3. The exponent -3 indicates that the decimal point should move 3 places to the left.

Starting with 5, when we move the decimal point 3 places to the left, we get 0.005. So, 5 x 10^-3 is equivalent to 0.005.

Answer 2

5 x 10⁻³ is a scientific notation.

5 is the coefficient
10 is the base
3 is the exponent. The sign of the exponent signifies which direction the decimal point moved.

negative sign means that the decimal point moved from left to right in writing the scientific notation.
positive sign means that the decimal point moved from right to left in writing the scientific notation.

5 x 10⁻³ is 0.005 in standard form.

had the exponent been positive.
5 x 10³ is 5000 in standard form