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lana66690 [7]
2 years ago
13

Help me i really need help

Mathematics
1 answer:
Marat540 [252]2 years ago
7 0

Answer:

Area = 530 cm^2

Step-by-step explanation:

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The value of a painting recently sold at an auction is expected to increase in value over time. The function v(t)=12,000(1.15)^t
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Please I need this quick!!! 15 points
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Let the number be n.

Then:

n^2 + (1/n)^2 = 82/9; find n.  Find the LCD; it is 9n^2.

Mult all 3 terms by 9n^2:
                                                                  82*9n^2
9n^4 + 9 = (82/9)(9n^2)  =>    9n^4 + 9 = ------------  
                                                                        9
Then 9n^4 - 82n^2 + 9 = 0

I used my graphing calculator to find that n = 3.  

Let's check:     is 3^2 + (1/3)^2 = 82/9?
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