To estimate the number of trout in a lake, we caught 40 trout, tagged and returned them. Later we caught 40 trout and found that three of them were tagged. From this experiment, estimate n, the number of trout in the lake. Hint: Let pn be the probability of three tagged trout among the second 40 caught. Find the value of n that maximizes pn.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The volume of a cube is 8 in to the 3rd power. how long is each side?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?