What is the difference between 4 ∑ 2n+1 n=1 and 4∑ *2i+1) i=1? 0
3
4
7

The answer is 3, I just wanted to put the answer here cause there was another question that didn't have the answer and I couldn't comment ! I got a 100 on the quiz so tell me if this is wrong (:

Ineed if you could explain and give me the answer you! this needs done

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?