h = $\frac{6 - 4}{4}$ = $\frac{2}{4} \frac{1}{2}$
x|4|4.5|5|5.5|6|
Mid ordinates are
4.25, 4.75, 5.25, 5.75
y = 3x3 - 5
when:
x = 4.25,
y = 3(76.8) - 5 = 225.3
x = 4.75,
y = 3(107.2) - 5 = 316.52
x = 5.25
y = 3(144.7) - 5 = 429.11
x = 5.75,
y = 3(190.11) - 5 = 565.33
all omid-ordinate rule is
h(sum of ordinate)
= $\frac{1}{2}(225.3 + 316.52 + 429.11 + 565.33)$
= 768.1359 sq. units
johnmulu answered the question on March 6, 2017 at 12:37
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