Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 10 17 6 33 Female 11 15 13 39
1 answer:
You might be interested in
Minus z both sides
0=x^2+wx+z
we can use quadratic formula or manually complete the square
let's use quadratic
for
0=ax^2+bx+c
given
0=1x^2+wx-z
a=1
b=w
c=-z
or 
0=x^2+wx+z
we can use quadratic formula or manually complete the square
let's use quadratic
for
0=ax^2+bx+c
given
0=1x^2+wx-z
a=1
b=w
c=-z