1.vertex form is 
to get into vertex form, complete the square

step 1: group x terms

step 2: factor coefient in front of x^2 term

prep for next step: take 1/2 of linear (1st dgree term) and square it
, 
step 3: add positive and negative of that previous number inside the parenthasees

factor perfect squaer trionmial

take out that -36 by expansion


2. factor out the 2

what 2 numbers multiply to get 12 and add to get 8?
2 and 6

3.
for 

in our case

a=1, b=-7, c=-6


so
and 
4. remember that
so 
treat
as a variable





[tex}16[/tex]
It seems there are not fractions between 3/5 and 4/5, but there are so many
for example, if you make denominator to 10 for both fractions, you will get 6/10 and 8/10
you can say 7/10 is in between 3/5 and 4/5
also, if you make denominator to 100 for both fractions, you will get 60/100 and 80/100
you can get 20 fractions between 3/5 and 4/5
Answer:
3 is my answer
Step-by-step explanation:
dont have much bal to explain
Answer:
94.2
Step-by-step explanation:
Circumference=2pir
2*3.14=6.28
6.28*15=94.2