Answer:
In general, number of proper subsets of a given set = 2m - 1, where m is the number of elements.
Yes, because there is a corresponding amount of teachers per student.
Answer:
153. 86 units squared
Step-by-step explanation:
3. 14 x 7^2= 153. 86
Answer:
Step-by-step explanation:
The formula for the area of a circle is 
, r is your radius, A is your area, and π is pi (3.1415...). You plug in your radius, or 5 into r, square it, 25, and multiply it by pi. You may be asked to use a certain number of digits of pi, and in that case you multiply for example 3.14 by 25, however is the exact answer.
