Material=wall+2*side and material is 40 ft so:
40=w+2s
w=40-2s
Area=ws, using w from above we get:
A=(40-2s)s
A=40s-2s^2
dA/ds=40-4s and d2A/ds2=-4
Since d2A/ds2 is a constant negative acceleration, when dA/ds=0, A(s) is at an absolute maximum.
dA/ds=0 when 4s=40, s=10 ft
And since w=40-2s, w=20 ft
So the dimensions of the pen are 20 ft by 10 ft, with the 20 ft side being opposite the wall. And the maximum possible area is thus 200 ft^2
Formula For finding Simple interest= Profit x rate x time/ 100
Profit = $2,007 x Rate= 7% x Time = 16 years
2,007 x 7 x 16
__________ = 224,784 ÷100 = 2,247.84
100
Answer :- 2247.84
Letter B would be the correct answer
The length of AC is congruent to WY
d = 10
Answer:
(x-5)²+(y-7)²=80
Step-by-step explanation:
