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.
Answer:
I think C 45 blocks are the right answer.
Answer:
Variant D
Step-by-step explanation:
-2*(-2)*(-2)*(-2)=16

Step-by-step explanation:

Answer:
(4 + x) * 2
Step-by-step explanation:
twice the sum means the total will be multiplied by 2 and sum is addition. So 4 and a number (x).