When Subtracting Several Quantities, the Number of Decimal Places in the Result

question 69

Multiple Choice

When subtracting several quantities, the number of decimal places in the result must always be

• A) larger than the number of decimal places in the most accurate of the quantities.
• B) equal to the number of decimal places in the most accurate of the quantities.
• C) equal to the average number of significant digits in the most and least accurate of the quantities.
• D) equal to the number of decimal places in the least accurate of the quantities.
• E) smaller than the number of decimal places in the least accurate of the quantities.

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Definitions:

Mafic Crystals

Minerals rich in magnesium and iron that crystallize from basaltic magmas, typically dark in color.

Pegmatite

An igneous rock with extremely large crystals, formed by the slow cooling of magma, often containing rare minerals.

Texture

The general physical appearance or character of a rock, especially the size, shape, and arrangement of minerals and other materials.

Viscosity

A measure of a material’s resistance to flow.