Answer:
Step-by-step explanation:
First find the area of the 2 bases, the triangles. 6x8= 48\2= 24 + 24= 48
Now find the area of each rectangle, which there are three of them. 8x14= 112, 6x14= 84, 10x14= 140
Now add all rectangles and triangles together 48+ 112+ 84+ 140= 384
Answer:
2 = 3.5 0.=3.2
Step-by-step explanation:
hope it helps
Answer:
- small prism: 630 m²
- large prism: 2520 m²
Step-by-step explanation:
The total surface area of the prism is the sum of the base area and the lateral area. The base area is made up of two right triangles, so will be the product of the triangle leg dimensions. The lateral area is made up of three rectangles whose width is that of the prism and whose equivalent length is the perimeter of the triangle base.
For the smaller prism, the area is ...
(20 m)(21 m) +(3 m)(20 m + 21 m + 29 m) = 420 m² +210 m² = 630 m²
The larger prism is similar, with a scale factor of 2, so its area will be 2² = 4 times that of the smaller prism:
4×630 m² = 2520 m²
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In summary, the total surface area of each prism is ...
- small prism: 630 m²
- large prism: 2520 m²
Step-by-step explanation:
H0: u = 44.3
Hi : u# 44.3
Z1-0.05/2
Z1-0.025
Z0.975 = 1.96
Z = x-u/s.d/√n
Z= 44.4 -44.3/2.6/√130
Z = (0.1×11.4018)/2.6
Z=0.44
Since the calcalculated value is less than the table value and does not fall in the rejection region we fail to reject the null hypothesis
