Answer:
its the 4th one
Step-by-step explanation:
Answer:
2z-6
Step-by-step explanation:
2(z-3)
2(z)-2(3)=2z-6
Ratio is 5girls:7boys with total 72 students
5+7= 12
72➗12= 6
6(5:7)= 30 girls : 42 boys
New ratio is 3:4 with 48 boys
48➗4= 12
So for girls 3x12= 36
So started with 30 girls ended with 36 girls... 6 girls joined band during the school year.
Find the vertex form
y = (x + 6)^2 - 45
1 DOC
2 BOC
3 EOC
4 AOD
5 AOC