Advanced MathEasyValue of a cubic model
Advanced Math practice question
The volume V, in cubic centimetres, of a growing crystal after d days is modelled by V = d³ + 2. What is the volume after 3 days?
Answer: 29
27 + 2 = 29.
Common wrong answers
- If you answered 11
- 11 uses 3 × 3 + 2.
- If you answered 27
- 27 forgets the +2.
- If you answered 125
- 125 uses (3 + 2)³.
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