<u>Final Answer:</u>
x = 20
<u>Step-by-step explanation:</u>
we'll be using the pythagorean theorem method, in this triangle the missing letter is a.
formula: 
a = x
b = 21
c = 29
a = 
a =
(note: 29² = 29 × 29 = 841 and 21² = 21 × 21 = 441)
a = 
a = 20
x = 20
5.3 you do your 9-3.7 and then add 9 +-3.7
Answer:
the probability that the song should be played on accurately 3 days out of 5 days is 0.051
Step-by-step explanation:
Given that
The probability that a particular song is played is 1 by 5
We need to find out the probability that the song should be played on accurately 3 days out of 5 days
So,

= 0.051
Hence, the probability that the song should be played on accurately 3 days out of 5 days is 0.051
The same is considered
Answer:
- 5-hour: 0.5277
- 1-hour: 0.8800
Step-by-step explanation:
The decay factor for time t can be written as ...
0.2785^(t/10)
Then the 5-hour decay factor is ...
0.2785^(5/10) ≈ 0.5277
and the 1-hour decay factor is ...
0.2785^(1/10) ≈ 0.8800