ValeryZipay ValeryZipay

11-06-2014
Mathematics

Answered

If 3^x = 54, then which of the following must be true?
A. 1 < x < 2
B. 2 < x < 3
C. 3 < x < 4
D. 4 < x < 5
E. 5 < x

Answer :

Аноним Аноним

14-06-2014

[tex]3^x=54\\\\27 < 54 < 81\\\\27=3^3;\ 81=3^4\\\\3^3 < 54 < 3^4\\\\Answer:3 < x < 4[/tex]

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