Can someone help me with this? My teacher said its a must in the homework and i cant find a solution.
1 answer:
Answer:
![8x^3+28x^2-16x](https://tex.z-dn.net/?f=8x%5E3%2B28x%5E2-16x)
Step-by-step explanation:
Volume of rectangular prism:
(l = length, b = breadth, h = height.)
Volume of rectangular prism:
![(x+4)*(2x-1)*4x](https://tex.z-dn.net/?f=%28x%2B4%29%2A%282x-1%29%2A4x)
![4x\left(x+4\right)\left(2x-1\right)](https://tex.z-dn.net/?f=4x%5Cleft%28x%2B4%5Cright%29%5Cleft%282x-1%5Cright%29)
Expand the two brackets using FOIL:
![4x(x* \:2x+x\left(-1\right)+4* \:2x+4\left(-1\right))](https://tex.z-dn.net/?f=4x%28x%2A%20%5C%3A2x%2Bx%5Cleft%28-1%5Cright%29%2B4%2A%20%5C%3A2x%2B4%5Cleft%28-1%5Cright%29%29)
![4x\left(2x^2+7x-4\right)](https://tex.z-dn.net/?f=4x%5Cleft%282x%5E2%2B7x-4%5Cright%29)
Expand:
![4x* \:2x^2+4x* \:7x+4x\left(-4\right)](https://tex.z-dn.net/?f=4x%2A%20%5C%3A2x%5E2%2B4x%2A%20%5C%3A7x%2B4x%5Cleft%28-4%5Cright%29)
![8x^3+28x^2-16x](https://tex.z-dn.net/?f=8x%5E3%2B28x%5E2-16x)
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Y-1=1/4(x-12)
Y-1=1/4x-3
Y=1/4x-3+1
Y=1/4x-2
Now write it in standard form ax+by+c
-1/4x+y=-2
It’s better not to have a negative in front so y-1/4x=-2
Answer is below..............
A. 3x x 2y
B. 5 x 2x x 3y
:)
Answer:
60
Step-by-step explanation:
closer to 60 than 50
brainliest really needed!!
Answer:
(a) 11.
(b) 5.
Step-by-step explanation:
(a)√124:
11*11 = 121 so an estimate is 11.
(b) ∛124
5*5*5 = 125
So an estimate is 5.