Answer:

Step-by-step explanation:
Given
Balls = 1 to 4
Required
Determine the probability of selecting ball numbered at least 2
Here, we'll assume that all numbers have the same probability.
The probability of each ball will be:

So:

Recall that
--- for each ball
So, the equation becomes



Answer:
22
Step-by-step explanation:
|-15 - 7|
-15 - 7 = -22
|-22| = 22
Answer:
Step-by-step explanation:
22
Answer:
816 square feet
Step-by-step explanation:
13(16+20+12) + 16(12) = 816