A department store has found that its value of sales (z) depends on the mumber of advertisements in circulars (x) and in newspapers (v), given by z = 420x – 2x2 – 3xy- 5y? + 640y + 1725. If the price per advertisement is RM1 in circulars and RM4 in newspapers, and the advertising budget is RM180, i) Write the Lagrangian function. ii) Find the number of advertisements in circulars and newspapers that will maximize sales subiect to the budget constraint.

Q: The value, V, of a computer can be modeled by the function V (t) = 1, 300(.61)", where t is the…

A: The given model is: V(t)=1333(0.61)t Where, t is in years.

Q: A rancher wants to fence in an area of 2,000,000 square feet in a rectangular field and then divide…

A: Let, l = the length of one side of the rectangular field w = the length of the other side.

Q: Suppose that a company's sales volume y (in thousands of units) is related to its advertising…

A:

Q: EAT has been selling their very own Platinum Eco-Charger since the beginning of this semester. If…

A:

Q: The equation M(x,y) = 73 +0.8x -0.9y gives the mileage (in mpg) of a new car as a function of tire…

A:

Q: Find the point of diminishing returns for the revenue function

A: The objective here is to find the point of diminishing returns for the given revenue function:…

Q: 144y+312y+ 169y= 0. y(0) = 6. (0) = 6. %3D %3D

A: Let the given differential equation be, 144y''+312y'+169y=0 Assume the solution of the differential…

Q: Suppose we have two functions. One is P(t) , which models the number of photographers entering the…

A: (a) The function P(F(x)) would not make any sense because F(x) s the function  and it will give…

Q: One model for expenditures at high school gives the cosr C, in dollars per pupil, as a function of…

A: The quadratic equation, y=ax2+bx+c can be expressed in the vertex form as y=a(x-h)2+k, where, the…

Q: During Ricardo noticed an ink stain with a diameter of about 3 cm on the front of his teacher’s…

A: