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Serhud [2]
3 years ago
11

HELP PLEASE QUICK!!!!!

Mathematics
1 answer:
cricket20 [7]3 years ago
7 0

Answer:in what can I help

Step-by-step explanation:

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Which expression represents: the product of 7 and the sum of 3 times a number n and 5?
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7(3n+5)

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A cylinder has height of 10 millimeters and radius 12 millimeters.Find the a.volume and b. surface area.
Sholpan [36]

Answer:

A. <u>Volume = 4,523.9 mm³ (cubic mm)</u>

B. <u>Surface area = 1,658.76 mm² (square mm)</u>

Step-by-step explanation:

A. Lest's calculate the volume of the cylinder:

r = 12 mm, h = 10 mm

Volume = π * r² * h

Volume = 3.1416 * 12² * 10

Volume = 3.1416 * 144 * 10

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B. Let's calculate the surface area of the cylinder:

Surface area = 2π * r * h +2π * r²

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<u>Surface area = 753.98 + 904.78 = 1,658.76 mm²</u>

8 0
3 years ago
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