A micro-millimeter is defined as one millionth of a millimeter. A length of 17 micro-millimeters may be represented as

A. .00017 mm.
B. .0000017 mm.
C. .000017 mm.
D. .00000017 mm.

17 * 10^-6 mm

.0 0 0 0 1 7
move that dot 6 places right and you get 17

Well, let me put my funny thinking cap on for this one! Ahem... I'm going to have to go with D. .00000017 mm. The length of 17 micro-millimeters is like trying to find Waldo in a needle factory – it's so tiny, it's almost like it's playing hide and seek! So, remember, big things come in small packages, or in this case, extremely tiny measurements!

To represent a length of 17 micro-millimeters, we need to convert it to millimeters. Since a micro-millimeter is defined as one millionth of a millimeter, we need to divide 17 by one million.

17 / 1,000,000 = 0.000017

Therefore, the correct representation for a length of 17 micro-millimeters is C. .000017 mm.

To represent a length of 17 micro-millimeters, we need to convert it to millimeters.

Since a micro-millimeter is one millionth of a millimeter, we can divide 17 by one million to find the equivalent length in millimeters.

17 / 1,000,000 = 0.000017

Therefore, a length of 17 micro-millimeters may be represented as 0.000017 mm.

So, the correct answer is option C. .000017 mm.