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PSYCHO15rus [73]
3 years ago
12

Martha works at a small jewelry store. She designs 2 rings in the first hour. Every additional hour, she designs 3 new rings. Se

lect all the functions that can be used to find the number of rings, r(n), she designs in n hours.
Mathematics
2 answers:
Andreyy893 years ago
8 0

Answer:

r (1) = 2; r (n - 1) + 3, for n >_2

and

r (n) = 3n -1

Step-by-step explanation:

yall aint even give us the functions  smh but its only two because r(1) is obv 2 and thats not expressed by any other answers. if u just plug it into the other functions (the ones without the first term) only one of the three work

grdingjersdvnjsjkbrhjzdfdfjdjk im screaminnggggg

hodyreva [135]3 years ago
3 0
Well we don't have the choices, maybe they're coming.

We want r(1)=2, r(2)=5, r(3)=8, ...

We can write that

r(n)=2 + 3(n-1)

That's equivalent to

r(n)=3n-1

Hopefully those are the two expressions among the choices.  There are many equivalent expressions but these are the most likely.




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Step-by-step explanation:

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