Which of the following usually have a positive correlation? select all that apply.
the amount of time studying and the grade on a science exam
the outside temperature and the amount of heating oil used
the weight of a car and the number of miles per gallon
the amount of time training and the total distance run

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.