def dist(loc_a, loc_b):
    return (pow(loc_b[0] - loc_a[0], 2) + pow(loc_b[1] - loc_a[1], 2)) ** 1/2

points = [(2.8, 9.8), (0.3, 8.3), (4.4, 8.8), (6.8, 7.4), (4.1, 0.3), (4.5, 0.0), (7.6, 1.1), (5.0, 8.2), (7.7, 1.8), (3.4, 6.9), (4.8, 3.2), (0.7, 7.9)]
distances = []
my_loc = (0, 0)

for point in points:
    distances.append(dist(my_loc, point))
print(distances)