Answer:
a. 3
Step-by-step explanation:
An independent variable is the variable that is changed in an experiment to test its effects on the dependent variable. i.e. inputs
A dependent variable is the variable being tested, measured or predicted in an experiment. I.e a outcome
In this case, the the effects of the amount tutors are paid a week before exam, the amount of sleep before exam and the number of study hours are input variables to determine or predict a students score in exam
The independent variables are;
x1 =represents the amount paid to a tutor (in dollars) in the week before the exam
x2 = represents the number of hours of sleep in the week before the exam
x3 = number of study hours in the week before the exam
The dependent variable is the exam score
B0, B1, B2,B3, B4 are coefficients
The answer is 1 because you have to Substitute Two form X then it would just be Then substitute 2 form 1 and you would get 1
the statement (l4x-2l = -6) is false (no solution) for any value of x because the absolute value function is always positive or 0
3 is, since you can divide both 6 and 3 by 3.
Simply look at the factors for each,
1, 3 for 3
1, 2, 3, 6 for 6.
