the discriminant b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0
13x^2-16x = x^2 -x
we need to get in it the standard form
subtract x^2 from each side
12x^2 -16x = -x
add x to each side
12x^2 -15x = 0
12x^2 -15x -0 =0
a=12 b=-15 c=0
b^2 -4ac
the discriminant = b^2
b^2 = (-15)2 = 225
The height of an oak tree (which depends on the age of the tree) is 100
Easy, all you have to do is add the eggs which she got the grams for (178.7)
Then, subtract 178.7g. from 225.0g. (46.3)
Then just put the eggs according from least to greatest:
1st egg:43.98
2nd egg:45.02
3rd egg:45.07
4th egg:45.72
5th egg:46.3
Hope this helps!
Answer:
-8/5 = -1.6 (the smallest number here)
-5/8 = -0.625
your answer is A :)
