121/150 or 0.0806. The 6 is repeating itself.
Answer:
20. 300π m³
21. 457 1/3 π cm³
Step-by-step explanation:
20. r = 10 ÷ 2 = 5
V = 5² × 12 × π = 25 × 12π=300π m³
21. r = 14 ÷ 2 = 7

V = 457 1/3 π cm³
Answer:
y-2 = -5x
5x+y = 2 is the required equation of a line.
I got 20.8 and in fraction form it would be 20 4/5