Answer:
were is the picture
Step-by-step explanation:
Answer:
![3y - 4](https://tex.z-dn.net/?f=3y%20-%204)
Step-by-step explanation:
<u>Step 1: Distribute</u>
![1/3 * (9y - 12)](https://tex.z-dn.net/?f=1%2F3%20%2A%20%289y%20-%2012%29)
![(1/3 * 9y) + (1/3 * -12)](https://tex.z-dn.net/?f=%281%2F3%20%2A%209y%29%20%2B%20%281%2F3%20%2A%20-12%29)
![(3y) + (-4)](https://tex.z-dn.net/?f=%283y%29%20%2B%20%28-4%29)
![3y - 4](https://tex.z-dn.net/?f=3y%20-%204)
Answer: ![3y - 4](https://tex.z-dn.net/?f=3y%20-%204)
Answer:
a) C(x) = 15000/x + 6x +80
b) Domain of C(x) { R x>0 }
Step-by-step explanation:
We have:
Enclosed area = 1500 ft² = x*y from which y = 1500 / x (a) where x is perpendicular to the river
Cost = cost of sides of fenced area perpendicular to the river + cost of side parallel to river + cost of 4 post then
Cost = 10*y + 2*3*x + 4*20 and accoding to (a) y = 1500/x
Then
C(x) = 10* ( 1500/x ) + 6*x + 80
C(x) = 15000/x + 6x +80
Domain of C(x) { R x>0 }
Answer:
Step-by-step explanation:
36/78 = 0.46153,,,, nope.. not a choice
36/123 = 0.2926.... so the last answer looks good