The volume of the cylindrical trunk is calculated as approximately: B. 21.17 ft³.
Volume = πr²h
The dimensions of the cylindrical trunk are:
Find radius (r) using the circumference of a circle formula:
4.5 = 2(π)r
4.5/2π = r
r = 0.7 feet
Volume of the cylindrical trunk = π(0.7²)(13) = 20.01 ft³ (close to 21.17 ft³)
The approximate volume of the cylindrical trunk is: B. 21.17 ft³.
Learn more about the volume of a cylinder on:
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A. Subtract 8 from both sides
B. Add 8 to both sides
C. add 9
D. subtract 9 from both sides
Answer:
7n - 25
Step-by-step explanation:
given
3(3n - 10) - 2n + 5 ← distribute the parenthesis by 3
= 9n - 30 - 2n + 5 ← collect like terms
= (9n - 2n) + (- 30 + 5)
= 7n + (- 25)
= 7n - 25