1. john has 3 red markers and 5 blue markers. what is the probability that he picks a red marker, and then, without replacing it, selects another red marker?

2. gina has 20 collector’s stamps. 8 stamps are blue, 6 are red, and 5 have both colors. if a stamp is chosen at random, what is the probability that the stamp has a blue or red color on it?

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

its an acute right triangle

step-by-step explanation: