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Mathematics
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Solve 7.7^4x + 3 = 10.2 x ≈ –2.15 x ≈ –0.47 x ≈ 0.03 x ≈ 0.28
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ER.....Isolate x? Use logs. u kno wat logs are?
I just need this question done to prove that my mom is wrong so I want to see what every one gets as an answer. I don't know if I did it correctly though..
well, show yur steps and answer. ill get some others to come check it out once you've posted it.
7.7^(4x+3) = 10.2 (4x+3) log(7.7) = log(10.2) 4x + 3 = log(10.2) / log(7.7) 4x = log(10.2) / log(7.7) − 3 x = log(10.2) / (4 log(7.7)) − 3/4 x = −0.465563812 but it doesn't match any of the answers.. unless -.047 would be it?
seems right to me
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