Acatch and release fisherman catches a fish and then releases the fish back into the river so as to not to harm the fish.

at a local river, 50% of the fish are white sturgeon, 35% brook trout, and 15% chinook salmon.

if a fisherman catches then releases a fish and then catches and releases a second fish, then what is the probability that both fish he caught were white sturgeon?

25%

Step-by-step explanation:

Assuming the catching of a fish is a random process and that the probability of catching any of the listed kinds of fish is proportional to their population, then the probability of catching a sturgeon is 50%. The probability of catching another one is also 50% (assuming the events are independent). So, the joint probability is the product of these:

0.50 × 0.50 = 0.25 = 25% . . . . . probability of catching 2 sturgeon in a row.

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.