Question R15 Q9 - NSB 2014

For the expression 5^x = 4^z, [five to the power of x equals four to the power of z] if x and z are positive, which of the following is true?

W) x^z = log(5/4) [x to the power of z equals log of five-fourths]

X) z/4 = log5(x) [z divided by four equals log base five of x]

Y) z < x

Z) x/z < 1 [x divided by z is less than one]

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