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Cloud [144]
3 years ago
6

Answer...........................

Mathematics
2 answers:
Usimov [2.4K]3 years ago
4 0

Answer:

9.9 years

Step-by-step explanation:

A = P e ^(rt)

Where A is the amount in the account

P is the amount invested

R is the interest rate

t is the time

P = 8500

r =7% = .07

A = 17000

Substituting into the equation

17000=8500 e^(.07t)

Divide each side by 8500

17000/8500=8500/8500 e^(.07t)

2 = e^(.07t)

Take the natural log of each side

ln (2) = ln e^(.07t)

ln(2) = .07t

Divide each side by .07

ln(2)/.07 = .07t/.07

ln(2)/.07 = t

9.902102579=t

Rounding to one decimal place

9.9 years

Nadusha1986 [10]3 years ago
4 0
I believe it is 9.9 years
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Firlakuza [10]

Line v passes through points (1, 12) and (10, 7). The slope of line w as improper fraction is \frac{9}{5}

<u>Solution:</u>

Given, two points are (1, 12) and (10, 7)  

We have to find the slope of a line that is perpendicular to line passing through the above given two points.

Slope of a line that pass through \left(x_{1}, y_{1}\right) \text { and }\left(x_{2}, y_{2}\right) is given as:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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Hence, the slope of line w as improper fraction is \frac{9}{5}

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