Na number line, what is the distance between -12 and 20? a) -32 b) 8 c) 12 d) 32

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

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

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart