There are 6 pure spectral colors: red, orange, yellow, green, blue, violet. Some animals cannot see all these colors. Bees cannot see orange or red. What fraction of the pure spectral colors can bees see??

On a piece of paper graph f(x)=5•(0.4)^x

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

If chord ab is congruent to chord cd, then what must be true about ef and eg?