Question

Convert 145.0 mm to meters and express the answer to the correct number of significant digits.

Answer 1

Answer:

0.1450 meters

Explanation:

we know that

The magnitude of a quantity to a specific degree of accuracy is known as significant digits.

According to the multiplication and division rules of significant digits, the least number of the significant digit in any number of the problem determines the number of significant digit in the answer.

Remember that

$1\ mm=0.001\ m$

so

$145.0\ mm=\frac{145.0\ mm}{1\ mm}(0.001\ m)=0.1450\ m$

In 145.0 mm, there are 4 significant digits and in 0.1450 m. there are 4 significant digits.

so

The correct number of significant digits is 4

therefore

the correct answer is, 0.1450 meters