Answer:
![{3x}^{4} + {8x}^{3} + {6x}^{2}](https://tex.z-dn.net/?f=%20%7B3x%7D%5E%7B4%7D%20%2B%20%20%7B8x%7D%5E%7B3%7D%20%20%20%2B%20%20%7B6x%7D%5E%7B2%7D%20)
Step-by-step explanation:
![{3x}^{3} (x + 2) + 2x( {x}^{2} + 3x)](https://tex.z-dn.net/?f=%20%7B3x%7D%5E%7B3%7D%20%28x%20%2B%202%29%20%2B%202x%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%203x%29)
![{3x}^{4} + {6x}^{3} + {2x}^{3} + {6x}^{2}](https://tex.z-dn.net/?f=%20%7B3x%7D%5E%7B4%7D%20%20%2B%20%20%7B6x%7D%5E%7B3%7D%20%20%2B%20%20%7B2x%7D%5E%7B3%7D%20%20%2B%20%20%7B6x%7D%5E%7B2%7D%20)
![{3x}^{4} + {8x}^{3} + {6x}^{2}](https://tex.z-dn.net/?f=%20%7B3x%7D%5E%7B4%7D%20%2B%20%20%7B8x%7D%5E%7B3%7D%20%20%20%2B%20%20%7B6x%7D%5E%7B2%7D%20)
<h3>Hope it is helpful...</h3>
Answer:
Yes
Step-by-step explanation:
Given that :
CHAIN A:
Sample size n1 = 30
Sample standard deviation of waiting time s1 = 21.2
CHAIN B:
Sample size, n2 = 28
Sample standard deviation of waiting time s2 = 31.4
Null hypothesis H0: s1 = s2
Alternative hypothesis H1: s1 < s2
Test statistic ; Ftest : s1² / s2²
Ftest = 21.2^2 / 31.4^2
= 0.4558399
P value from F statistic : = 0.02 (using p value calculator)
Since the pval < 0.05
Then we reject the Null ; Chain A waiting time is more consistent
I think the answer is x equals 3
For this case we have that the variable "k" represents the floor area of Melanie's kitchen.
We have that the floor area of the room is 1.5 times the floor area of the kitchen, then, we propose the following function to find the floor area of the room:
![A (k) = 1.5k\\A (k) = k (1 + 0.5) = k + 0.5k = 1.5k](https://tex.z-dn.net/?f=A%20%28k%29%20%3D%201.5k%5C%5CA%20%28k%29%20%3D%20k%20%281%20%2B%200.5%29%20%3D%20k%20%2B%200.5k%20%3D%201.5k)
Answer:
Option A and D