The answer is 114 just divide 228 by 2
T.S.A. = pi (7) (24) + pi (7)^2 = 168pi + 49pi = 217 pi cm^2 = more or less 681,73 cm^2
Answer: 3
Step-by-step explanation:
Answer:
Margin of Error = 0.5
Step-by-step explanation:
Using this formula Z (s/√n)
Where
S = 1.8----------------------------- Standard Deviation
n = 36 ----------------------------------Number of observation
Z = 1.645 ------------------------------The chosen Z-value from the confidence table below
Confidence Interval || Z
80%. || 1.282
85% || 1.440
90%. || 1.645
95%. || 1.960
99%. || 2.576
99.5% || 2.807
99.9%. || 3.291
Substituting these values in the formula
Margin of Error = 1.645 * (1.8/√36)
Margin of Error = 1.645 * (1.8/6)
Margin of Error = 1.645 * 0.3
Margin of Error = 0.4935
Margin of Error = 0.5 (Approximated)