X^2 - xy + xy - Y^2
=
X^2 - Y^2
Answer:
Step-by-step explanation:
Add the total number of students:
Boys: 8, + Girls: 12 = 20 students
of the students are girls
6/10 also equates to 60%, which is the percent of girls in the class.
Answer:
A. -1/2
Step-by-step explanation:
(2x+2)^2 - 3(4/3x)=3
x=-1/2
a^2+b^2=c^2 <----- the equation to find out sides for a right triangle
I hope it helps you ❤️❤️❤️