It should be the 2nd or 4th answer, i’m not COMPLETELY sure. I’m positive it’s the 4th answer
It would cost $132. 7+7+15+15X3=132
Answer:
2.29 ft of side length and 1.14 height
Step-by-step explanation:
a) Volume V = x2h, where x is side of square base and h is hite.
Then surface area S = x2 + 4xh because box is open.
b) From V = x2h = 6 we have h = 6/x2.
Substitude in formula for surface area: S = x2 + 4x·6/x2, S = x2 + 24/x.
We get S as function of one variable x. To get minimum we have to find derivative S' = 2x - 24/x2 = 0, from here 2x3 - 24 = 0, x3 = 12, x = (12)1/3 ≅ 2.29 ft.
Then h = 6/(12)2/3 = (12)1/3/2 ≅ 1.14 ft.
To prove that we have minimum let get second derivative: S'' = 2 + 48/x3, S''(121/3) = 2 + 48/12 = 6 > 0.
And because by second derivative test we have minimum: Smin = (12)2/3 + 4(12)1/3(12)1/3/2 = 3(12)2/3 ≅ 15.72 ft2
Answer:
The correct option are: (A), (B), (C) and (E).
Step-by-step explanation:
The One-Way ANOVA is a statistical test used to compare the three or more population means.
The hypothesis is:
<em>H</em>₀: The population means are equal, i.e. μ₁ = μ₂ = μ₃ =...= μₙ
<em>H</em>ₐ: At least one of the population mean differ.
The Assumptions of One-way ANOVA are:
- The samples selected from each population are independent of each other.
- The population distribution of the dependent variables follow Normal distribution.
- The population variances are always equal for all the groups.
Thus, the correct option are: (A), (B), (C) and (E).
Answer:
Step-by-step explanation:
