Hey here is the answer to ur question...
5x^2-2xy+y^2
=>5*(-2)^2-2*-2*3+(3)^2
=>5*4+12+9
=>20+12+9
=>41
Hope this helps u....!!!
Answer:
36.5
Step-by-step explanation:
If you take 16 and devide by 2 and add 13 you get 21 then do the same thing to 21 and you get 23.5 then lastly do it again to 23.5 and get 36.5
(2x - 1) (x + 7) is the answer to your question!
Answer:
x = 125 ft and y = 250/3 ft
Step-by-step explanation:
Let assume that,
x be the length of the northern part of the fence (parallel to the north wall)
y be the length of the western and eastern pieces of the fence
As well as farmer has $4000 to spend hence we can write,
8x + 8y + 4y = 4000
8x + 12y = 4000
Hence we can say that,
from the above equation we can write
We know that area
A=xy.
we can write
equating it 0 we get
Also,
which is less than zero.
we can see that A''(x) is always less than 0 hence using second derivative test we can say that x = 125 is a maximum point.
now, solving for y we get
Hence we can say that dimensions for the plot that would enclose the most area is,
x = 125 ft and y = 250/3 ft