Let x = length and y = width
You would have 2 lengths, so 2x and 3 widths, so 3y
Those need to equal total length of fence:
2x + 3y = 1200
The 3 widths would equal total fence minus the 2 lengths:
3Y = 1200-2x
Solve for y: y = 400 -2/3x
Area = length x width = xy. Replace y :
Area = x(400-2/3x) = 400x-2/3x^2
Differentiate:
400-4x/3 =0
4x/3 = 400
4x = 1200
X = 300
Y = 400-2/3(300) = 200
The dimension would be 300 ft x 200 ft
Answer:
B. Left sum < Trapezoidal rule value < Right sum
Step-by-step explanation:
The left sum makes use of the left endpoint of the sub-interval making it less than the right sum which makes use of the right endpoint of the sub-interval.
The trapezoidal approximation makes use of both endpoints, but has an area that is the average of the areas of the inscribed and circumscribed rectangles.
.Hence the trapezoidal rule value will be approximately equal to the average of the right sum and the left sum
Answer:
8-d , 9-c ,and i cant see 10
Step-by-step explanation:
this is just what i know off of what i've learned
Notice, ending ends makes it easeier
1+20=21
2+19=21
...
10+11=21
there are 10 pairs of numbers
they add to 21
10 times 21=210
the sum is 210
Volume Equation: V=4/3(pi)r^3
Surface Area: A=4(pi)r^2