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scoray [572]
2 years ago
7

Can someone help with this

Mathematics
1 answer:
dangina [55]2 years ago
7 0
The answer is 13.76 sq inches first you find the area of the plywood 8x8=64 then you minus the area of the circle cut out. So that formula is pir^2 and that is 3.14x16=50.24 now minus it off plywood area 64-50.24=13.76 square inches
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Anton [14]
Its 64 hope you get a good grade
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3 years ago
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I report if you answer randomly. Don't steal my points, go steal someone elses.
Sav [38]

Answer:

D

Step-by-step explanation:

p +/- [z + sqrt(pq/n)]

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Christopher is going to install wallpaper on the four walls of his room. Two of the walls are 14 feet long by 9 feet high. The o
Aliun [14]
Given:
2 walls - 14ft by 9ft
2 walls - 20ft by 9ft

Wall 1 & 2 = 14ft * 9ft = 126 ft² x 2 = 252 ft²
Wall 3 & 4 = 20ft * 9ft = 180 ft² x 2 = 360 ft²

Total area = 252 ft² + 360 ft² = 612 ft²

Cost of 1 single roll: $20
612 ft² ÷ 18 ft² = 34 rolls * $20 = $680

Cost of double roll: $40
612 ft² ÷ 54 ft² = 11.33 rolls ⇒ 12 double rolls
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If Christopher opts for 1 single roll of wallpaper, he'll spend $680.
If he opts for double roll of wallpaper, he'll spend $480.

Double roll of wallpaper is the cheaper option. He'll save $200 if he'll buy the double roll of wallpaper.
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3 years ago
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Resuelve la ecuación de la recta
Katena32 [7]

Answer:

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Step-by-step explanation:

OKKK

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Charlie saves $21.45 each month for 6 months.In the seventh month, he only saves $10.60.How much money will Charlie have after 7
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$21.45 x 6 = $128.7
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Charlie will have saved $139.3 in 7 months
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