If 10^(z-1)< 0.000125 <10^z, what is the value of an integer z?
Pick.
A) -4 B) -3 C) -2 D) 3 E) 4
-&gt; Multiply 10^6- &gt; (10^6){10^(z-1)}&lt;125&lt;(10^6)(10^z) -&gt; 125 is bigger than 100   -&gt; (10^6)(10^(z-1))=100 -&gt; 10^(6+z-1)=10^2, z+5=2 -&gt; z=-3   Thus, the answer is -3
<result>B</result>
If 10^(z-1)< 0.000125 <10^z, what is the value of an integer z?