3x + ky = 8 X – 2ky = 5
are simultaneous equations where k is a constant.
Show that x = 3.

Which of the following points is collinear with (-2,1) and (0,3)

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is