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babunello [35]
3 years ago
14

Which of the following is the solution to the equation 25^(z - 4) = 125 ? Select one: A. z = 5.5. B. z = 3.5. C. z = -2.5. D. z

= -0.5.
Mathematics
2 answers:
Bogdan [553]3 years ago
8 0
A. z=5.5
25^(5.5-4)=125
25^(1.5)=125
      125 = 125
z=5.5
cestrela7 [59]3 years ago
7 0
<span>
given
25^(z - 4) = 125
ln(</span>25^(z - 4)) = ln (125)
(z-4)ln(25) = ln(125)
z = ln(125)/ln(25) + 4
z = 5.5

which means that the answer is A. 
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