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3 years ago

3. Write an exponential equation for each coin that will give the coin's value, V, at any time, t. Use

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

Answer:

Coin A : $V(t)=25(1.07)^t$

Coin B : $V(t)=40(1.05)^t$

Step-by-step explanation:

Consider the given formula is

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

where, P is current value, V(t) is the value of the coin in t years, and r is annual appreciation rate.

For coin A, current value is 25 dollars and annual appreciation rate is 7%.

$V(t)=25(1+0.07)^t$

$V(t)=25(1.07)^t$

For coin B, current value is 40 dollars and annual appreciation rate is 5%.

$V(t)=40(1+0.05)^t$

$V(t)=40(1.05)^t$

Therefore, the required equations for coin A and B are $V(t)=25(1.07)^t$ and $V(t)=40(1.05)^t$ respectively.

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Answer:

Choice number one:

$\displaystyle \frac{5}{10}\cdot \frac{4}{9}$ .

Step-by-step explanation:

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Pythagorean triples are given by the formulas x2 - y2, 2xy, and x2 + y2. Use the formulas for the Pythagorean triples to prove w

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Let $k$ be an integer. Suppose there is a triangle with legs of length 16 and $2k+1$ . Then by the Pythagorean theorem, the length of the hypotenuse should be

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The formulas for Pythagorean triples say that if the legs are integers, then so must be the hypotenuse, because if $x=16$ and $y=2k+1$ are integers, then so are $x^2-y^2$ , $2xy$ , and $x^2+y^2$ .

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Step-by-step explanation:

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