Professor clayton hypothesizes that travel to other countries increases students' abilities to do well in advanced sociology classes, so she conducts a survey study to test this. which variable is her independent variable? - the survey - travel to other countries -the research methods -students' abilities

travel to other countries

Step-by-step explanation:

The independent variable is the one which brings changes in the another variable or dependent variable. The dependent variable is variable which changes due to manipulative changes on the independent variable.

The independent variable is the travel to other countries which is going exert it's influence over the increase in the ability to do well in advanced sociological classes.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

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