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Harman [31]
3 years ago
10

Select the correct answer. What is the solution to this equation? 9^x-1=2

Mathematics
2 answers:
andrezito [222]3 years ago
7 0

Answer:

See below which answer is most appropriate

Step-by-step explanation:

If you mean 9^{x-1}=2:

9^{x-1}=2

x-1=log_9(2)

x=log_9(2)+1

If you mean 9^x-1=2:

9^x-1=2

9^x=3

3^{2x}=3

2x=1

x=\frac{1}{2}

Tcecarenko [31]3 years ago
5 0

Answer:

x=1/3

Step-by-step explanation:

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The coordinates of verticales diagonal RT are R(1,3) and  T(1,-3).

The coordinates of verticales diagonal SU are S(4,1), and  U(-2,-1),

By applying distance formula:

\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}

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