A school administrator tells everyone in the building that they will be having a fire drill randomly sometime during the school day which is from 8 a. m. to 3 p. m. If second period is from 9:20 a. m. to 10:10 a. m., what is the probability of the fire drill happening during second period?

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

What percent of the circle below is shaded?

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