The first term in an arithmetic sequence is 5. The third term in the sequence is -1. The tenth term in the sequence is -22. Which function can be used to find the nth term of the arithmetic sequence?

A.
f(n) = n + 4

B.
f(n) = -n

C.
f(n) = 0.5(n + 5) + 2

D.
f(n) = -3n + 8

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

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