20 ! and brainiest

which of the following sets of events are dependent?

there may be more than one correct answer. select all that apply.

1. flipping a coin and getting heads, then picking a card that is an ace

2.drawing a card from a deck, and drawing another card after returning the first one to the deck

3. drawing a card from a deck, and drawing another card without returning the first one

4. rolling a die a first time, then rolling the die a second time to get a sum of 7

5.flipping a coin and getting a heads, then flipping it again and getting tails

1and2

Step-by-step explanation:

flipping flipping a coin and getting a Ace has no direct correlation

if you draw a card from a deck it should not have an effect on the next card you pick if you put it back before you draw the next card

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