Find the value of x when the area of this triangle is 5

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

For what value of (y) is 3^3/3^y =1/9

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.