- 49 x 15000 =?

Discover Questions

I know the United States "purshased" Alaska from Russia but why isn't it just part of Canada? Dollar to Ph peso rate? How many E-coli bacteria have been produced in the Lenski experiment? Help, double integrals, I cant get answer:
∫[from 0 to infinity] (tan−1(5x)−tan−1(2x))/(x) dx. I got:
∫[from 2 to 5] (1/(1+(xy)^2)) dy.? Indicate the number of unpaired electrons for: [noble gas] ns2np5?