Answer:
Step-by-step explanation:
Multiplying
(2 + 3i)(2 - 3i)
4 - 6i + 6i - 9i^2
4 - 12i + 9
13 - 12i
Add/subtract
2 - 3i + 2 + 3i = 2
2 - 3i - (2 + 3i) = 2 - 3i - 2 - 3i = -6i
Step-by-step explanation:
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Answer:
34.20
Step-by-step explanation:
Because 10.38/6=1.78 1.78*20=34.20
Answer:
Step-by-step explanation:
volume of cylinder = πr²h = π(5²)(16) ≅ 1256 cm³
volume of cone = ⅓πr²h = ⅓π(3²)12 ≅ 113.04 cm³
volume of air space = 1256 - 113.04 = 1143.96 cm³