Coal is composed of carbon. Is it a mineral?
Nova AndersonNo, coal is not considered a mineral because it is formed from organic matter.
For a mineral to be classified as pure, it must possess five specific qualities.
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Wesley AlveyYes, coal is considered a mineral because it is a naturally occurring, inorganic solid with a definite chemical composition and crystalline structure, even though it is mainly composed of carbon.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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