Answer:
? 40.50
Step-by-step explanation:
90 ÷ 20 × 9 = 40.5
cost of 9article is 40.50
hope it helps.
your answer would be 16
6 kw are used each hour
E = P t
E/t = P
66 kwh /11h = 6 kw
V≈7853.98
V=πr2h
r=10
h=25
Solution
V=πr2h=π·102·25≈7853.98163
The coefficient is 2...
