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sammy [17]
3 years ago
5

An investor started building his portfolio in 1985. The initial value of this portfolio was $25,000. After a 30- year career, th

e value of his portfolio had increased to $425,000. What is the average percentage increase per year in his portfolio?
Mathematics
1 answer:
Virty [35]3 years ago
3 0
Average percentage =(425000-25000)/(30-0)
Average percentage= 13,333.3

Use formula [f(b)-f(a)]/(b-a)
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<h2>The range: {-6, -10, -14, -18}</h2>

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Help please, I attached a screenshot
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\frac{(7 {x}^{2}  {y}^{4} ) ^{2} }{49 {x}^{6}  {y}^{5} } \\  =   \frac{ {7}^{2} {x}^{2 \times 2}   {y}^{4 \times 2} }{49 {x}^{6}  {y}^{5} }  \\  =  \frac{49{x}^{4}  {y}^{8} } {49 {x}^{6}  {y}^{5}} \\  =   {x}^{4 - 6} {y}^{8 - 5}  \\  =  {x}^{ - 2}  {y}^{3}  \\  =  \frac{y ^{3} }{ {x}^{2} }

<u>Answer:</u>

<u>\frac{y ^{3} }{ {x}^{2} }</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

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