Question

homework 1
question 1 of 17 (1 point) | question attempt: 1 of 3
○ 2 m
● 2 mm
part 4 of 4
○ 2 ks
○ 2 ds

Explanation:

For the first part (length unit), 2 mm is a more reasonable small - scale length unit compared to 2 m in many contexts (e.g., if we are dealing with small objects). For the second part, we need to consider the correct unit. "ds" is a less common or incorrect unit in standard metric or common unit systems, while "ks" is also non - standard. Wait, maybe there is a typo. If we assume it's about time or another quantity, but more likely, if we consider standard units, and assuming a possible typo (maybe "ds" is a mistake and we are to choose the more reasonable one, but actually, the correct option for the second part should be analyzed. Wait, maybe the second part is about a unit, and if we consider that "ds" is a decisecond (1 ds = 0.1 s) and "ks" is kilosecond (1 ks = 1000 s). But without more context, but looking at the options, if we assume it's a unit - related question, and the correct option for the second part: we need to check the units. If it's about a small - scale unit, but "ds" is a valid unit (decisecond) and "ks" is kilosecond. But maybe the intended correct option is 2 ds? Wait, no, maybe the question is about choosing the correct unit. Wait, the first part: the selected option is 2 mm, which is correct for small lengths. For the second part, if we assume it's a unit like decisecond (ds) vs kilosecond (ks), and if the quantity is small, 2 ds is more reasonable than 2 ks (which is a large amount of time). So we choose 2 ds.

Answer:

First part: 2 mm (selected option is correct).
Second part: 2 ds (the correct option among the two is 2 ds).