castlea castlea

05-12-2016
Mathematics

Answered

Write an equation that models the sequence 400, 200, 100, 50, ...

Ay = 400(2x)
By = 50 (2x)
Cy = 1/2x + 400

D)y = 400(1/2)X-1

Verified Answer :

jimthompson5910 jimthompson5910

05-12-2016

You're starting at 400. Each time you're cutting in half.

So the common ratio is 1/2 which means the equation is

\(\Large y = 400(1/2)^{x-1}\)

which is in the geometric sequence format. So the answer is choice D

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nixieam11 nixieam11

13-12-2018

Answer:

he answer is D.)y = 400(1/2)X-1

Step-by-step explanation:

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