A researcher is investigating motivation of people to exercise. A study is undertaken to investigate the source of motivation and the longevity of the results. Four participants receive calls from a human trainer. Four participants receive a call from an automated system, and four participants receive no calls. The number of minutes spent exercising per week are recorded at the beginning of the program, after six months, and after one year.
a) Fill in the table below
Source SS df MS F
b) Suppose the F statistics are shown below. What would you conclude?
1) F stat = 6.48
2) F stat = 5.91
3) F stat = 6.89

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

54.864 meters

step-by-step explanation:

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step-by-step explanation: