Answer: negative, positive
Step-by-step explanation:
Answer:
Explain well like michael phelps
Step-by-step explanation:
Answer:
69
Step-by-step explanation:
because 34plus 35 will give you 69
Answer:
The probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107
Step-by-step explanation:
Consider the provided information.
It is given that mean is 440 seconds and standard deviation is 60 seconds.
z factor for less than 302 seconds would be: 
z = (302 - 440) / 60 = -2.3
The probability of getting a z factor of less than -2.3 = 0.0107 approximately.
looking up in the z-table for a z factor of -2.3.
The probability of a student running the mile in less then 302 seconds would be 0.0107.
Hence, the probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107
Answer:
x = 3, y = 1
Step-by-step explanation:
2y = 2x - 4, so y = x - 2. Substituting this into the bottom equation and solving for x:
x - 2 + 3x = 10
4x - 2 = 10
4x = 12, so x = 3 and y = 1.