The weight of a soccer ball is normally distributed with a mean of 0.43 kg and a standard deviation of 0.01 kg. suppose 800 different soccer balls are in a warehouse. about how many soccer balls weigh more than 0.45 kg? a) 12 b) 20 c) 24 d) 40

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