l3xilynn01 l3xilynn01
  • 25-01-2017
  • Mathematics
contestada

20. Express 2log7 5 as a single logarithm. A. log7 115 B. log7 52 C. log7 511 D. log7 √ 5

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taskmasters
taskmasters taskmasters
  • 07-02-2017
For a logarithm that is expressed in that form, the numerical coefficient should be the exponent of number 5. Such that the simplified logarithm should be,
                               log7 (5^2)
Simplifying the answer would give,
                               log7 (25)
The answer is not among the choices. 
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johnmerk2002
johnmerk2002 johnmerk2002
  • 30-01-2019

Answer:the answer is b


Step-by-step explanation:

The question doesn't show it corecly on the test its log 7 5^2 not 52

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