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Archy [21]
3 years ago
14

Which unit rates would be appropriate for describing the rate of growth of a tree?

Mathematics
1 answer:
IRISSAK [1]3 years ago
5 0
<span>I got two answers is that okay? The question said to select each correct answer implying that there could be more than one.



inches per year - this could make sense as well because you could easily measure the number of inches a tree grew in a year. 

millimeters per week- I suppose this makes sense how fast the specific tree grew. So, if you are alllowed to pick two answers I think you could make a strong case to your teacher that this unit has the potential to be logical rate unit for tree growth. 

milliliters per minute - NO. I think that this would be an illogical rate unit to use for trees because their growth is so slow that it wouldn't change by a measurable amount in just a minuet.  

miles per hour - NO. Trees do not grow fast enough for this to be a logical unit rate to use. </span>
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Answer:

A(t) = 90e^0.12t ;

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Step-by-step explanation:

General Continous growth rate equation :

A = Pe^rt

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Here,

P = 90 mg, amount in year 2000

r = rate = 12% = 0.12

t = years after 2000

Therefore,

A is written as ;

A(t) = 90e^0.12t

Amount present in year 2010 ;

t = 2010 - 2000 = 10

A(10) = 90e^0.12(10)

A(10) = 90 * e^1.2

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= 299 mg

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