Hello,
z=-2x²+15x-3y²+21y-6
=-2(x²-2*15/2*x+(15/2)²) -3(y²-2*7/2y+(7/2)²)-6+2*225/4+3*49/4
=-2(x-15/2)²-3(y-7/2)²+573/4
The max is for x-15/2=0 and y-7/2=0 thus 537/4
Let, length of one leg of triangle = length of other leg of triangle be Xunits
H = 1 unit
H^2 = X^2 + X^2
1×1 = 2×X^2
X^2 = 1/2
X = 1/√2units
12 boxes would be 22 pounds.
-4 1/8 as decimal.
The decimal is -3.875.
Answer:
20%
Step-by-step explanation:
7000-5600=1400
1400/7000×100=20
