Answer:
x,y( 27/13 ,43/13)
Step-by-step explanation:
x=5-4y
•1-2x+5y=16
1-2(5-4y)+5y=16
y=27/13
x=5-4y
x=5-4×27/13
x=-43/13
Answer:
d/2
Step-by-step explanation:
Because the radius of a circle is half of the circumference, d.
Hope this helps ^-^
Answer:
Step-by-step explanation: with what?
Let x represent the edge length of the square end. Then the area of the end of the package is x², and the length of the package is 126 -4x. The overall volume is ...
V = x²×(126 -4x)
V = -4x³ +126x²
The volume will be a maximum where the derivative of volume with respect to x is zero.
V' = -12x² +252x
V' = -12x(x -21)
This will be zero for x = 0 and for x = 21
The maximum volume of the package is
V = (21 in)²(126 in -4×21 in)
V = 18,522 in³