(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).

Find an equation (in term of x) of line through the points (-1,3) and (1,4)

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.