An auto race consists of 8 laps. A driver completes the first 2 laps at an average speed of 190 miles per hour and the remaining laps at an average speed of 200 miles per hour. Let d represent the length of one
lap. Find the time in terms of d that it takes the driver to complete the race. Enter the expression in
simplest form.
The time that it takes the driver to complete the race is represented by the
expression

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

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)