Suppose r(t)= cos(t)i+sin(t)j+(2t)k represents the position of a particle on a helix, where z is the height of the particle above the ground. when it is 20 units above the ground, the particle leaves the helix and moves along the tangent. find parametric equations for this tangent line (pick t so that it is continuous through the time when the particle leaves the helix).

What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

What are different types of statistical programs