(2) in r', a point mass m, moves with the velocity vi(t) = (1, tcost, tsint) and the original position r(0) = (-1,1,0). another point mass m, has the position function ra(t) = (t? , 2 cost, 2 sint). (a) compute ri(t), the position function of m. (b) denote l1 (8) and la(s) be the distance traveled by m, and m, from t = 0 tot 8 respectively. find l2 (2019)/l (2019).

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)