Select all the relationships that demonstrate a positive association between variables.

1)Outside temperature and cost to heat a home

2)Number of people in a grocery check-out line and how long you have to wait to check out

3)Length of time you have walked and distance you have traveled

4)Pounds of cherries you buy and amount of money you spend on cherries

5)Speed of a train and the amount of time it takes for the train to get to its destination

312312

step-by-step explanation:

2 1/2 feet

step-by-step explanation:

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.