WILL MARK BRAINLIEST IF YOU GET IT RIGHTthe discriminant to determine the number of solutions and types of solutions for the quadratic equation below show your work then answer the questions in the blank below a²+3a=7​

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.

a ≈ 172.05

step-by-step explanation:

the pictures.

he is going to fill two shelves and the third shelf will only have five video games

cool stunts are flippin i think

sitting on a chair

and using stick feet