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​

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

50

step-by-step explanation:

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total