7c4/7p4 evaluate the expression. 7c4 is for combination ; 7p4 is for permutation

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5

The formula to determine energy is e=1/2mv2? what is the formula solved for v?