Answer:
True.
Step-by-step explanation:
C(4, 3) means the number of combinations from 4 items taking 3 at a time. We are selecting 3 distinct items and it doesn't say anything about the order in which they are selected , so we use a combination formula not a permutation ( where order does matter).
C(4, 3) = 4! / 3! 1!
= 4*3*2*1 / 3*2*1*1
= 4.
There are 4 ways to select 3 items from 4.
Answer:
36 1/4 inches
Step-by-step explanation:
Subtract 38 1/2 from 74 3/4:
74.75 - 38.5
= 36.25 or 36 1/4
So, the vertical measurement of the bulletin board is 36 1/4 inches
Answer:
58
Step-by-step explanation:
Answer:
Answer is 2 root under 20
He can arrange the black and white photes in 5 rows because you can make 2 rows of 6 or 6 rows of 2. also you can put 1 rows of 12 or 4 rows of 3 or 3 rows of 4. sam can arrange the color photes in 4 different ways of 18 because he can put 1 row of 18 or 18 rows of 1. Also he can put 2 rows of 9 or 9 rows of 2.
Hope this helps!
