Combinations = n! / (n - r)! r!

In this case:
n = 4
r = 3
Combinations = 4! /(4-3)! 3! = 24/(1)(6) = 24/6 = 4
Answer:
4 arrangements
Answer:
Yes
Step-by-step explanation:
Reason is that a square has all the aspects of a parallelogram a rectangle and a rhombus. It gets its congruent diagonals from the rectangle which is congruent
Answer:
I believe it would be 4 seconds
Step-by-step explanation:
PLATO/Edmentum
Answer:
0
Step-by-step explanation:
0 is the identity element under addition for the real numbers.