Answer: C. Use a larger sample size and D. Larger confidence level
Step-by-step explanation: The information will be more accurate, as it is not right now and if there are more people then there will be a huge group of people that agree on one thing.
V=π * r^2 * h/3 = π * 2^2 * 8/3 ≈ 33.51032 or about 34 units^2
y = a(x - b)^2 + c has vertex (b , c)
so here the vertex is (1, -36)
You answer is 12 because that is where on the graph it is the most constant
