Question

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

Answer 1

Answer:the answer is b

Explanation:

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

Answer 2

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.