Answer:
The maximum value of P is 18
Step-by-step explanation:
we have'the constraints
---> constraint A
---> constraint B
---> constraint C
---> constraint D
using a graphing tool
The solution of the four constraints is the quadrilateral shaded area
The vertices of the quadrilateral area are
(0,0),(3.2,0),(2,6) and (0,7.33)
see the attached figure
To find out the maximum value of the objective function P, substitute the value of x and the value of y of each vertex in the objective function and then compare the results
so
For (0,0) ----> 
For (3.2,0) ----> 
For (2,6) ----> 
For (0,7.33) ----> 
therefore
The maximum value of P is 18
4x-8=9y-5 in standard form is 4x-9y=3
Answer: x=-3
Step-by-step explanation:
Answer:
The length is 16.1 ft and the width is 4.7 ft
Step-by-step explanation:
Let
x -----> the total length of the tables
y -----> the width of the tables
we know that
The area is equal to


so
-----> equation A
-----> equation B
substitute equation B in equation A


Solve the quadratic equation by graphing
The solution is 
Find the value of x

therefore
The length is 16.1 ft and the width is 4.7 ft
You need to attach the picture