A friend had a question about Interval Notations, I had no idea how to do it..but kind of ..well tried to learn how. And I think the answer is A? Any help here?
1: Write in interval notation: | x | ≤ 3
a. (-∞, -3] U [3, ∞)
b. (-∞, ∞)
c. [-3, 3]
d. No solution
Hello
I got a few questions...
To be a Physicist or a Astronomer, do you need to know how to program at all? I thought you needed to know a little of program..my friend who has a different thought on this, like why don't they hire their own programmers and do it themselves...after-all...