Final answer:
The statement that scientific notation uses powers of ten is true.
t's used to write very large or small numbers conveniently as a product of a coefficient and a power of 10, simplifying arithmetic operations.
Step-by-step explanation:
Scientific notation indeed uses powers of ten. This convenient form of notation expresses very large or small numbers as a product of a coefficient and a power of 10.
The coefficient is a number between 1 and 10, and the power of ten indicates the number of times 10 is multiplied by itself.
For instance, the number 79,345 in scientific notation is 7.9345 × 104, where 7.9345 is the coefficient and 104 represents 10× 10× 10× 10.
Similarly, a small number such as 0.000028 can be expressed as 2.8 × 10-5, where the negative exponent signifies that the decimal has been moved five places to the left.
This system not only provides a simplified way of writing numbers but also makes the multiplication and division of large and small numbers easier, as one can multiply or divide the coefficients and add or subtract the exponents accordingly.