2 SE
17. 20
WO
Ans: 0.786
. Using Simplex method, maximize Z = 5x1 + 7x2 subject to
2x1 + 3x2 313 3x1 + 2x2 < 12
X1, X220.
[6]
Ans: Max. value of z is 31 at (2, 3)
Show that the equation f(x) = x3 - 18 = 0. has only one
positive root. Using bisection method, find the positive root
correct to 3 places of decimal in the interval (2,3). [6]
Ans: 2.621
OR
Use Newton-Raphson method to find the positive root of
x + 3x - 5 = 0 lying between 1 and 2 correct to three places
of decimals.
[6
Ans: 1.154
let
1
20
WC
toc​

1+1=22×1=22-1=11-1=1duh

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )