Answer:
To sum consecutive numbers we use the formula:
n * (n+1) / 2
1 through 55 = (55 * 56) / 2 = 1,540
1 through 9 = (9 * 10) / 2 = 45
10 through 55 = 1,540 -45 = 1,495
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EDITED
Gee, it seems I added ALL numbers from 10 through 55
ALL ODD numbers from 10 through 55 sum to
759
Step-by-step explanation:
Answer:
lateral area: 240
surfaca area: 304
volume: 320
Step-by-step explanation:
lateral area is the area of the vertical sides (ie excluding top and bottom)
so 10*8 + 10*4 + 10*8 + 10*4 = 240
surface area includes all surfaces, so it is 240 + 4*8 + 4*8 = 304
volume: 4*8*10 = 320
Answer:
1. 0.333 No
2. 0.3 or 0.300 Yes
3. 0.667 No
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
just split the shapes and find the area of each shape then add the answers all together
