- How to be relaxing?

Discover Questions

What is the probability to meet a yellow car in Sweden, percentagewise? Can somebody help me differentiate f(x)= (-x^2-1)/(x^2-1)^2 and get the answer as f''(x)= (2x^3 +6x)/(x^2-1)^3? What's the diffrence between KMH and MPH? Will we ever create a wearable device which will both create a force that overpowers gravity and be easy to use so we can fly like PeterPan? I had it but it lelf?