Question

13. A car travels along the four sides of a square at speeds v, 2v, 3v and 4v respectively. If u is the average
speed of the car in its travel around the square, then which of the following is correct :
a u= 2.25v
b) u = 3v
c) v<u<2v d) 3y <u< 4v
14. The difference between the price of
To​

Answer 1

Answer:

Determine the point which maximises or minimises the function :

U= x

2

+ xy+y2

+3z2

Subject to : z+2y +4z = 60Determine the point which maximises or minimises the function :

U= x

2

+ xy+y2

+3z2

Subject to : z+2y +4z = 60