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which sequences are arithmetic?. –5, 5, –5, 5, –5, … 96, 48, 24, 12, 6 18, 5.5, –7, –19.5, –32, … –1, –3, –9, –27, –81, … 16, 32, 48, 64, 80

Respuesta :

amayacbeau
16, 32, 48, 64, 80 is an arithmetic sequence.

In an arithmetic sequence, the difference between the consecutive terms is constant. In this case, the difference between each term is 16; this means 16 is added to each term to get the following term.
mathstudent55
–5, 5, –5, 5, –5, … : The differences between terms vary. Not arithmetic.

96, 48, 24, 12, 6 : The differences between terms vary. Not arithmetic.

18, 5.5, –7, –19.5, –32, … : The difference between terms is always -12.5. Arithmetic.

–1, –3, –9, –27, –81, … : The differences between terms vary. Not arithmetic.

16, 32, 48, 64, 80 : The difference between terms is always 16. Arithmetic.

Answer: The third and fifth choices are arithmetic sequences.

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