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Alex73 [517]
2 years ago
11

Grade For This Exam Selles

Mathematics
1 answer:
adell [148]2 years ago
8 0

Answer/Step-by-step explanation:

a. Volume of hemisphere = ½(⁴/3πr³)

r = 30 cm

Volume = ½(⁴/3 × π × 30³)

Volume = ⅔ × π × 27,000 = 56,548.6677 ≈ 56,549 cm³

b. 4,500 cm³ = 1 min

56,549 cm³ = (56,549 × 1)/4,500

= 12.5664444 ≈ 12.6 mins

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