Answer:
1) 6*5-4
2) 17 - (5+9)
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
3x-7=5x-19
12=2x
x=6
Im pretty sure that it is 50
Answer:
0.025
Step-by-step explanation:
Given that the arrival time of a professor to her office is uniformly distributed in the interval between 8 and 9 A.M.
If the professor did not arrive till 8.20 he will arrive between 8.21 and 8.40
Hence probability for arriving after 8.20 is 1/40
Prob he arrives at exactly 8.21 is 1/60
To find the probability that professor will arrive in the next minute given that she has not arrived by 8: 20.
= Prob that the professor arrives at 8.21/Prob he has not arrived by 8.20
This is conditional probability and hence
= 
Answer:
17 is your answer
Step-by-step explanation: