Create a quadratic expression in standard form. b. rewrite the expression by completing the square. explain your work using complete sentences. use the order of operations to turn the expression back into standard form. explain your work using complete sentences. explain why completing the square will always result in a perfect square trinomial.

his chances of getting a coin of higher value is 4/19

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

i believe the answer is the polygon, heptagon.