5 Nadia is making a rectangular
mosaic out of -inch by Inch
tiles. The rectangle is 12 inches long
and 3 inches wide. How many tiles
will Nadia use to cover the rectangle
completely?
42 tiles © 144 tiles
® 84 tiles
168 tiles

step-by-step explanation:

the first 5 right here the next 5 i will upload as separate question

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