Eniki has a sequence of numbers given by the formula t(n) = 4(5n).
What are the first three terms of Eniki's sequence?
Substitute n = 1, 2, and 3 into the formula.
Chelita thinks the number 312,500 is a term in Eniki's sequence. Is she correct? Justify your answer by either giving the term number or explaining why it is not in the sequence.
Let t(n) = 312,500 and solve for n. Be sure to divide both sides of the equation by 4 before taking the log of both sides.
What kinds of numbers will tell you if it is in the sequence?
Elisa thinks the number 94,500 is a term in Eniki's sequence. Is she correct? Explain.
See part (b).