Answer:

Step-by-step explanation:
#This is simple case of addition, who numbers and fractions:

Hence, the summation of this two fractions is 1 3/4
Answer:
50%
Step-by-step explanation:
So, we divide by another 2! to cancel out double counting of two T's. Finally, if we divide all 6 different ways of getting exactly 2 heads (and 2 tails) in 4 flips by all possible outcomes 2 * 2 * 2 * 2 = 16 we would get the probability of exactly 2 heads in 4 flips.
Step-by-step explanation:
step 1. what is 4^2?
step 2. 16.
Answer:
M=4
Step-by-step explanation:
6(M-2)=12
6(M-2)/6=12/6
M-2=2
M-2+2=2+2
M=4