Answer:
use a tree diagram to get a visual representation over it then calculate you're probability.
Answer:
<em>(14, -7)</em>
Step-by-step explanation:
Answer:
12 cleaners
Step-by-step explanation:
8 cleaner can clean in 3 hours = 1 office
1 cleaner can clean in 3 hours =
part of job
1 cleaner can clean in 1 hours =
part of job
Let the number of cleaner required to finish the job in 2 hours = x
hence
x cleaner can clean in 1 hours =
part of job
x cleaner can clean in 2 hours =
part of job
Hence




Hence we need 12 men to complete the same job in 2 hours
<u>Answer with step-by-step explanation:</u>
We know that the formula for area of a circle is given by:
<em>Area of a circle =
</em>
So to find the area of circle, we basically need to know the radius of the circle.
If we know the circumference of the circle, we can calculate the area of the circle too.
Formula for the circumference of the circle is given by:

So if we know the circle's circumference, we can find the value of radius and then find the area of circle with it.