Answer:
T(0, -3)
Step-by-step explanation:
Answer:
20(E)
Step-by-step explanation:
Printing press R, S and T are working together at their respective constant rate.
They can do a job for 4 hours.
Let r, s and t be the time for printing press R, S and T to complete the job alone at their respective constant rate.
Rate of printing press R = 1/r
Rate of printing press S = 1/s
Rate of printing press T = 1/t
Rate = job / time
R + S + T = 4
1/r + 1/s + 1/t = 1/4
S + T = 5
1/s + 1/t = 1/5
Substitute 1/s + 1/t = 1/5 in the equation 1/r + 1/s + 1/t = 1/4
1/r + 1/5 = 1/4
1/r = 1/4 - 1/5
1/r = (5 - 4)/ 20
1/r = 1/20
r = 20 hours
It takes the printing press R 20 hours to complete the job alone
Answer:
Establishing casual relationship
Population of interest : University of California undergraduates
Sample size : 129 university of California undergraduates
Generalized to population : It depends if the 129 students where picked randomly within the school i.e. considering the fat that every individual represents a certain culture present in the school's population
How to establish Relationship between socioeconomic class and unethical behavior
Step-by-step explanation:
A)The cases
Establishing casual relationship
Population of interest : University of California undergraduates
B) The variables and types
Sample size : 129 university of California undergraduates
Generalized to population : It depends if the 129 students where picked randomly within the school i.e. considering the fat that every individual represents a certain culture present in the school's population
C) The main research question
How to establish Relationship between socioeconomic class and unethical behavior
conclusion : This cannot be used to establish casual relationship because it is a randomized experiment
