A=226.19 A=2πrh+2πr2=2·π·4·5+2·π·42≈226.19467
Because A is in between the points just add the points together. so it would be 26+50=76
Which means the answer is option D.
3,989.237
A thousandth = 1/1000 = 0.001
Round 4th decimal place = 5
5 and over is rounding up and under 5 rounds down so it would be 3,989.237
The number of people who voted follows a binomial distribution with probability of having voted

and

subjects, which means the approximating normal distribution should have mean

and standard deviation

.
With the continuity correction, you have