Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to: Select the correct option.
A) 2.2
B) 8.2
C) 2.9
D) 2.1
E) 2.6
xz = y2 10(0.48z) = 10(2 x 0.70) = 101.40   0.48z = 1.40   z =	140	=	35	= 2.9 (approx.)   48	12   Answer: 2.9
<result>C</result>
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to: