Δabc is similar to δaxy by a ratio of 3: 2. if bc = 24, what is the length of xy?

triangles abc and axy that share vertex a where point x is between points a and b and point y is between points a and c

xy = 8
xy = 12
xy = 16
xy = 36

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

(x-5)1/2+5=2 what is possible solution of this equation

Mr. roseanne will buy 12 1/2 pounds beef for for a cookout. the price for the first 3 pounds of beef is $4.99 per pound. after that, the price is $4.49 per pound. how much will mr.roshan pay for the beef