Question

Convert 28.9 mm to µm. Express your answer to three significant figures.

a) 28,900 µm
b) 2,890 µm
c) 289 µm
d) 2.89 µm

Answer 1

To convert 28.9 mm to µm, you need to multiply the value in millimeters by 1,000. Therefore, the correct answer is 28,900 µm (option a).

Step-by-step explanation:

Conversion: mm to µm

To convert millimeters (mm) to micrometers (µm), you need to multiply the value in millimeters by 1,000. This is because there are 1,000 micrometers in 1 millimeter.

Given that you want to convert 28.9 mm to µm, you can use the following calculation:

28.9 mm x 1,000 = 28,900 µm

Therefore, the correct answer is 28,900 µm (option a).