To get a B, you need at least 80%.
30 x 0.8 = 24
80% of 30 is 24, so you would need to get at least 24 points <3
Answer:
A, f(2) is the answer because it fits into the requirements.
452.16 = 3.1416 r^2
r^2 = 452.16 / 3.1416
r^2 = 143.93
r = 11.997
C = 2 (3.1416) (12) =75.38 m
For example, a classroom of 30 students with 15 males and 15 females could generate a representative sample that might include six students: three males and three females
so true i think
