The Sequence of Letters That Is Used to Classify Star

question 117

Multiple Choice

The sequence of letters that is used to classify star surface temperatures, as determined by relative spectral absorption line strengths, in order of DECREASING temperature, is

• A) A, B, F, G, K, M, O.
• B) M, O, F, K, G, A, B.
• C) O, F, M, G, A, B, K.
• D) O, B, A, F, G, K, M.

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Definitions:

Perfect Square Trinomial

A trinomial that can be factored into two identical binomials, resulting from squaring a binomial.

Simple Interest

A way of calculating interest where the amount earned or paid is proportional to the initial sum invested or borrowed and the rate of interest.

Principal

The original sum of money borrowed in a loan or put into an investment, not including profits or interest.

Sum Of Cubes

A special algebraic formula or identity that expresses the sum of two cubes in terms of a product of a binomial and a trinomial.