Answer:
468 in ^2; a
Step-by-step explanation:
Add each side of the prism;
Base: 15*10 = 150
Rectangular sides: 10*12+9*10 = 210
Triangular sides (x2): ((9*12)/2)*2 = 108
108+210+150 = 468 in ^2
Answer:
-2
Step-by-step explanation:
Answer:
6x+50
Step-by-step explanation:
we need to distribute the 5 first
5x+50+x
then
6x+50
Answer:
390 m (perpendicular to river) x 780 m (parallel to river)
Step-by-step explanation:
Let y be the length of the side parallel to the river, and let x be the length of the sides perpendicular to the river.
The total area and length of fence required are given by:
Rewriting the length of fence as a function of only x:
The value of x for which the derivate of L(x) is zero is the length of x that uses the least amount of fencing:
If x = 390 m, then:
The dimensions that will use the least amount of fencing are 390 m x 780 m