If m is selected at random from set `{1,2,…..,10}` and the probability that the quadratic equation `2x^(2)+2mx+m+1=0` has real roots is k then value of 10k is ______________

Column I, Column II If the probability of getting at least one head is at least 0.8 in n trials, then value of n can be, p. 2 One mapping is selected at random from all mappings of the set s={1,2,3, ... ,n} into itself. If the probability that the mapping being one-one is 3/32, then the value of n is, q. 3 If m is selected at random from set {1,2,..., 10} and the probability that the quadratic equation 2x^2+2m x+m+1=0 has real roots is k , then value of 5k is more than, r. 4 A man firing at a distant target as 20% chance of hitting the target in one shoot. If P be the probabililty of hitting the target in "n" attempts , where 20 P^2-13 P+2lt=0, then the ratio of maximum and minimum value of n is less than, s. 5

If the quadratic x^(2) - 2x +k =0 has equal roots, then value of k is ______.

If the roots of the quadratic equation 2x^(2)+8x+k=0 are equal, find the value of k .

Find the value(s) of k so that, the quadratic equation x^2 - 4kx + k = 0 has equal roots.

The equation x^(2)+2(m-1)x+(m+5)=0 has real and equal roots. Find the value of m.

Value(s) of k for which the quadratic equation 2x^(2)-kx+k=0 has equal roots is/are

Values of k for which the quadratic equation 2x ^2+kx+k=0 has equal roots.

Write the value of k for which the quadratic equation x^2-k x+4=0 has equal roots.