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Suppose f(x) = 7(2.6)x and g(x) = 55(1.5)x. Solve f(x) = g(x) for x.

User Taiwotman
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1 Answer

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Final answer:

To solve the equation f(x) = g(x), you can set the two functions equal to each other and solve for x using logarithms. The solution to f(x) = g(x) is approximately 0.457.

Step-by-step explanation:

To solve the equation f(x) = g(x), we need to set the two functions equal to each other and solve for x. So, we have:

7(2.6)^x = 55(1.5)^x

To solve this type of equation, we can take the logarithm of both sides. Let's take the natural logarithm (ln) of both sides:

ln(7(2.6)^x) = ln(55(1.5)^x)

Using the properties of logarithms, we can simplify the equation:

x(ln(7) + ln(2.6)) = x(ln(55) + ln(1.5))

Now, divide both sides by (ln(7) + ln(2.6)):

x = (ln(55) + ln(1.5)) / (ln(7) + ln(2.6))

Using a calculator to evaluate the right side of the equation, we find:

x ≈ 0.457

User MintyAnt
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