15q – 4r = 62
5q + 8r = 86
Find for r and q

r=7 q=6

Step-by-step explanation:

15q - 4r = 62

15 × 6 - 4 × 7 = 62

90 - 28 = 62

5q + 8r = 86

5 × 6 + 8 × 7 = 86

30 + 56 = 86

Hope this helps! If you have any more questions or need more explanation please leave a comment down below and I will reply ASAP. Good luck!

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

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.