Hello : <span>(3x²+kx-1) is a quadratic polynome when : a =3 , b=k , c= -1 the discriminat </span>Δ = b²-4ac ≥ 0 because ac = -3 <span><<span> 0 -4ac </span></span>>0 and b²<span>≥0 the </span> quadratic polynome has :2 solutios or 1 solution (Change of sign) conclusion : <span>is never always positive for any value of k</span>
Theres 2 odd numbers on the wheel out of 4, so half the wheel is odd numbers, so theres a 50% chance of it landing onto a odd number which is equivalent to 1/2
