Answer:
the probability that at least one envelope is a yellow envelope is 16/21
Step-by-step explanation:
The probability that at least one envelope is a yellow envelope is P(Y);
P(Y) = 1 - P(Y)'
P(Y)' is the probability that no envelope is a yellow envelope.
Given;
red envelope = 1
blue envelopes = 3
green envelopes = 2
yellow envelopes = 3
Total = 9
Number of non-yellow envelope = 9 -3 = 6
(6 envelope are not yellow)
P(Y)' = P1 × P2 × P3
Since there is no replacement;
P(Y)' = 6/9 × 5/8 × 4/7
P(Y)' = 5/21
From equation 1;
P(Y) = 1 - 5/21
P(Y) = 16/21
the probability that at least one envelope is a yellow envelope is 16/21.
Answer:
2+5x?
Step-by-step explanation:
Answer:
Choice A ; Choice B
Step-by-step explanation:
x < 365
x ∈ ( -oo ; 365 )
Solutions :
x = 99
x = 361
let, the height be h
area of the parallelogram= base x height
425 = 35 x h
425/35 = h
12.14m = h
Required algebraic expression is 8/(x - m)
