Answer:
sccccccccccccccccccccccccccccccccccccccccccafda
Step-by-step explanation:
fsdfsafvsafsdgarrgegrgergrg
Would it be c and d cause a is not the the line ?
we are given
![F(d)=0.77d^2-1.32d-9.31](https://tex.z-dn.net/?f=F%28d%29%3D0.77d%5E2-1.32d-9.31)
where
F is the number of board feet
d is the diameter (in inches) of the log
Since, we have to minimize F
so, firstly we will find it's derivative
![F'(d)=0.77\times 2d-1.32\times 1-0](https://tex.z-dn.net/?f=F%27%28d%29%3D0.77%5Ctimes%202d-1.32%5Ctimes%201-0)
![F'(d)=1.54d-1.32](https://tex.z-dn.net/?f=F%27%28d%29%3D1.54d-1.32)
now, we can set it to 0
and then we can solve for d
![F'(d)=1.54d-1.32=0](https://tex.z-dn.net/?f=F%27%28d%29%3D1.54d-1.32%3D0)
![1.54d-1.32=0](https://tex.z-dn.net/?f=1.54d-1.32%3D0)
so, we get diameter as
..............Answer
I) -7s^2+28st+21su
II) -8c^2+20cd
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.