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oksano4ka [1.4K]
3 years ago
13

suppose the annual rate of inflation is about 4% this means that the cost of an item increases by about 4%. write and evaluate a

n exponential expression to find the answer to this question.. if a piano costs $3,500 today, what did it cost 4 years ago?
Mathematics
1 answer:
Mashcka [7]3 years ago
4 0
Cost = (3,500) * (1.04)^years
Cost = (3,500) * (1.04)^4
<span><span><span>Cost = (3,500) * 1.16985856 </span> </span> </span>
<span><span>Cost = </span>4,094.50</span>



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<h2>Answer:</h2>

<h3>(0,14) and (2,11)</h3>

<h2>Step-by-step explanation:</h2>

points are on the graph of the line:-

\tt{3x+2y=28  } ⠀

we get,

\rightsquigarrow \tt{ 2y=28-3x } ⠀

\rightsquigarrow \tt{y=\dfrac{28-3x}{2}  } ⠀

In,(0,14)

If we put the value ,x=0

y=\tt{\dfrac{ 28-3×0}{2}=\dfrac{28}{2}=14 }

So,we get one point,(0,14)✔

In,(2,11)

If we put ,x=2

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so,we get another point (2,11)✔

in other given ponts{(1,12),(4,9),(8,4)},It is impossible. ⠀ ⠀

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garik1379 [7]
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Answer:

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