13/27 is the simplest form.
Answer:
Step-by-step explanation:
r = 0.9 m
h = 3.6 m
Area of two circle faces combined: 2*π(0.9)^2 = 1.62π
Lateral area = circumference*height = 2π(0.9)(3.6) = 6.48π
Surface Area = 1.62π + 6.48π = 8.1π m sq.
Answer:
I think that its D
Step-by-step explanation:
..
First we find the mean (average)
(90 + 82 + 88 + 78 + 93) / 5 = 431/5 = 86.2
now we find the absolute value of the difference of the data points and the mean
90 - 86.2 = 3.8....| 3.8 | = 3.8
82 - 86.2 = -4.2...| -4.2 | = 4.2
88 - 86.2 = 1.8....| 1.8 | = 1.8
78 - 86.2 = -8.2 | -8.2| = 8.2
93 - 86.2 = 6.8....| 6.8| = 6.8
now we find the mean (average) of those values
(3.8 + 4.2 + 1.8 + 8.2 + 6.8) / 5 = 24.8 / 5 = 4.96 <== the MAD
