Given that:

my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159]

What value does this expression reduce to: my_list[:2]

Do not forget to use the correct notation! As an example. strings have 'quotes' and floats have decimal points ...

Question

Given that:

my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159]

What value does this expression reduce to: my_list[:2]

Do not forget to use the correct notation! As an example. strings have 'quotes' and floats have decimal points ...

BlackTom AI · Accepted Answer

The question presents a Python list and asks what my_list[:2] evaluates to when using proper Python notation.

First, consider the list itself: my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159]. This is a standard Python list containing an integer, a string, another string, and a float, in that order.

Next, recall how slicing with the colon operator works in Python. The slice my_list[:2] means: start at index 0 and go up to, but not including, index 2. In Python, list indices start at 0, so index 0 refers to the first element (42) and index 1 refers to the second element ('Life, the Universe, and Everything').

Since the end index 2 is exclusive, the slice includes elements at indices 0 and 1 only, and stops before index 2.

Therefore, the slice yields a new list containing the first two elements: [42, 'Life, the Universe, and Everything'].

A few quick checks help confirm this behavior: - The first element remains 42, unchanged by slicing. - The second element, the long string, remains as is. - No elements beyond the second are included because the end index is exclusive. - The resulting type is a list, same as the original, containing the same two elements in order.

If you were to print this result, you would see exactly: [42, 'Life, the Universe, and Everything'].

Combined CS-126 sections - (1257-4967) COMPUTER SCIENCE I (Fall 2025 M16) 002 Module 2 - Midterm Exam | Quiz

Given that: my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159] What value does this expression reduce to: my_list[:2] Do not forget to use the correct notation! As an example. strings have 'quotes' and floats have decimal points ...

查看解析

登录即可查看完整答案

类似问题

Given that: my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159] What value does this expression reduce to: my_list[:2] Do not forget to use the correct notation! As an example. strings have 'quotes' and floats have decimal points ...

Given that: my_list = [42, 'Life, the Universe, and Everything', 'A duck', 3.14159, 'The Grail'] What value does this expression reduce to: my_list[3:] Do not forget to use the correct notation! As an example. strings have 'quotes' and floats have decimal points ...

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单