3 years ago

Cual es la función inversa de: f(x)=x2-3

Mathematics

1 answer:

Katarina [22]3 years ago

6 0

Answer:

f−1(x)=√x−3,−√x−3

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Peyton is going to invest $440 and leave it in an account for 5 years. Assuming the

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Answer:

The required interest rate would be of 3.4% a year.

Step-by-step explanation:

The amount of money earned in compound interest, after t years, is given by:

$P(t) = P(0)(1+r)^t$

In which P(0) is the initial investment and r is the interest rate, as a decimal.

Peyton is going to invest $440 and leave it in an account for 5 years.

This means that $P(0) = 440, t = 5$

$P(t) = P(0)(1+r)^t$

$P(t) = 440(1+r)^5$

What interest rate, to the nearest tenth of a percent, would be required in order for Peyton to end up with $520?

This is r for which P(t) = 520. So

$P(t) = 440(1+r)^5$

$(1+r)^5 = \frac{520}{440}$

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$1 + r = 1.034$

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The point (3 , k) is a distance of 5 units from (0 , 1). Find the two possible values of k.

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