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the equivalent exponential equation of log(7J=k is

the equivalent exponential equation of log(7J=k is

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)
1

10k = 7

Attn: Switch 7 and k. Don't change the base.

Daniel O. | Math and Physics Tutor, with a math and physics degreeMath and Physics Tutor, with a math and ...
5.0 5.0 (265 lesson ratings) (265)
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If     logab = x    then    ax = b

What you have is:

       log107 = k     so     10k = 7

(the 'standard' logarithm, when no base is shown, is assumed to be base 10)

Herb K. | Semi-Retired College Professor - MIT Grad - very patient, experiencedSemi-Retired College Professor - MIT Gra...
4.5 4.5 (22 lesson ratings) (22)
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just as log(100) = 2, because 10^2 = 100 (10 being the base of the COMMON log), so also we have 10^k = 7