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nataliem02
11.07.2019 •
Mathematics
What is the solution to the equation 9^(−3x) ≈ 7? a) x = 0.376 b) x = 0.295 c) x = −0.295 d) x = −0.376
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Ответ:
Ответ:
x = −0.295
Step-by-step explanation:
Given :![9^{(-3x)} \sim 7](/tpl/images/0078/2334/4eccb.png)
To Find : value of x
Solution:
Taking log both sides
Using property:![\log a^n= n \log a](/tpl/images/0078/2334/7dc7e.png)
So,![(-3x)\log 9 \sim \log 7](/tpl/images/0078/2334/329f7.png)
Thus Option c is correct.
Hence x = −0.295
Ответ:
12 1/4, 12.7, 12 1/3
Step-by-step explanation: