A ration is basically a fraction. It can be written different ways i.e. 2/3 or 2:3. They are both the same thing. There are 5 girls out of 39 students... ratio= 5/39 or 5:39
The answer for " J " would be 228
actually box 3 is correct.
because their radiuses are easy to find
but the tangent line is x=-4 or x=4
Answer:
(A)
Step-by-step explanation:
Given a set with "n" number of elements, the collection of all subsets of the set is referred to as the Power set of the given set.
To find the number of possible subsets of any set, we use the formula: 
Take for example the set: A={2,3,4)
A has 3 elements, therefore n=3
The number of possible subsets of A is: 