Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence.

2, 4, 8, 16, –32, 64, …

a.

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b.

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c.

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d.

the sequence is not a geometric sequence.

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

What is the vertex form of f(x) = x2 + 6x + 3

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?