Amultiple choice test consists of six questions, each of which has four choices. each question has exactly one correct answer.

william guesses randomly at each answer. what is the probability that he gets four or fewer questions correct?

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct