The set of all possibilities is called sample space and is denoted by S.
So, S = {NBD, NDB, BDN, BND, DBN, DNB} and n(S) = 8
and we need to find the probability of NBD
E = {NBD} and n(E) = 1
The probability of an even is defined by p(E) = 
Hence, p(E) = 
Answer:
A
Step-by-step explanation:
The ratio is
1 inch : 100 miles
0.5 inch : X miles
1/100 = 0.5/X
X = 0.5 ÷ 1/100
X = 0.5 × 100/1
X = 50
Answer:
486 in²
Step-by-step explanation:
9x9x6=486 in²