Python includes many useful modules that are just an import away. The math module is extremely useful in computing mathematical expressions in Python. Suppose we want to very accurately compute the area of a circle with a given radius. (Here's the link if you don't remember the formuta).
Get the radius as an input from the user Notice that we need the constant pl which is roughly 3.14 Conveniently, the math module has p defined for us as math. pi Use it to compute the area.
Output the resulting area with five digits after the decimal point.

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

Which demographic challenge is europe currently experiencing? a. an aging and decreasing population b. a baby boomc. an unequal distribution between males and females d. a large group of teenagers moving through the school system(i chose a but i'm unsure)