Answer:
Step-by-step explanation:
Given, f ( x ) = - x - 3
Let's find the value of f ( - 4 )
We know that ,
⇒
Subtract 3 from 4
⇒
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Answer:
V ≈ 68.63 cm³
Step-by-step explanation:
the volume (V) of a sphere is calculated as
V = πr³
the volume of a hemisphere is half the volume of a sphere, so
V = ×
πr³ =
πr³ , then
V = π × 3.2³
= π × 32.768
≈ 68.63 cm³ ( to 2 dec. places )