Answer:
B
Step-by-step explanation:
The formula for calculating the volume (V) of a cone is
V = πr²h
where r is the radius of the base and h is the height
here r = = 3 and h = 5
V = π × 3² × 5
= π × 9 × 5 = 15π m³ → B
How many ways can eight girls sit together in a row?
2 answers:
In 10080 ways
<u>Step-by-step explanation:</u>
We first treat the two people how have to sit together as 1 item taking up 2 seats so they have 7 possibilities of seats i.e. 12 23 34 45 56 67 78 and the two of them can sit in 2 possible ways, AB or BA
Now, the other 6 people will have 6 seats to choose from. So the total number of ways they can sit is 6 for the first person 5 for the second and so on so its 6!
Thus, the total number is = 10 080
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