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destinydiamond6887
11.03.2021 •
Mathematics
Multiple choice pls help!
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Ответ:
Step-by-step explanation:
sine =![\frac{oppositex}{hypotenuse}](/tpl/images/2217/6604/4104a.png)
since A =![\frac{15}{17}](/tpl/images/2217/6604/10d2c.png)
Ответ:
C = 420/h + 400
Step-by-step explanation:
Let s be the side of the square base.
Let h be the height
Volume = s*h
20 = s*h
s = 20/h
Cost of glass is
5(20/h) + 5(4* h*20/h)
= 100/h + 400
Cost of frame is
2*4(20/h) + 2*4(20/h)
= 160/h + 160/h
= 320/h
Total cost = C
C = cost of glass + cost of frame
C = 100/h + 400 + 320/h
C = 420/h + 400