Question

why is it important to write quantities with the correct number of significant figures? multiple choice to make calculations easier. significant figures only apply to very small measurements. to indicate how precisely a quantity is known. to ensure the answer has more decimal places.

Explanation:

• "To make calculations easier" is incorrect as significant figures relate to precision, not calculation ease.
• "Significant figures only apply to very small measurements" is wrong; they apply to all measured quantities.
• "To indicate how precisely a quantity is known" is correct, as significant figures reflect measurement precision.
• "To ensure the answer has more decimal places" is incorrect; significant figures don't aim to increase decimal places.

Answer:

C. To indicate how precisely a quantity is known.