Answer:



Step-by-step explanation:

They wanted to complete the square so they took the thing in front of x and divided by 2 then squared. Whatever you add in, you must take out.

Now we are read to write that one part (the first three terms together) as a square:

I don't see this but what happens if we find a common denominator for those 2 terms after the square. (b/2a)^2=b^2/4a^2 so we need to multiply that one fraction by 4a/4a.

They put it in ( )

I'm going to go ahead and combine those fractions now:

I'm going to factor out a -1 in the second term ( the one in the second ( ) ):

Now I'm going to add (b^2-4ac)/(4a^2) on both sides:

I'm going to square root both sides to rid of the square on the x+b/(2a) part:


Now subtract b/(2a) on both sides:

Combine the fractions (they have the same denominator):

Answer: 32 students
Step-by-step explanation: 8 x 4 = 32
Answer:
45%
Step-by-step explanation:
Create a fraction with the of " something " on the denominator and multiply by 100% to create the percentage, that is
percent =
× 100% = 45%
An equation in point-slope form is
y - y1 = m (x - x1)
Your point is (7,6) and your slope is 2
y1 is the y coordinate of your point (in this case 6)
x1 is the x coordinate of your point (in this case 7)
m is your slope (in this case 2)
Now you just have to plug these numbers in:
y - 6 = 2 (x - 7)
The answer to this is 2000...
hope this helps and HAGD!