Answer:
12
Step-by-step explanation:
If the line has a slope of 4, then a line perpendicular to it would have a slope of -1/4.
If the line has a slope of -4, then a line perpendicular to it would have a slope of 1/4.
The relation of slopes between two perpendicular lines is m1*m2=-1
6m^2n^2 - 3mn + 4mn + 13m^2n^2 + 9
combine like terms
19m^2n^2 + mn + 9 <==
Answer:
compró 4 cajas q contenían 3 vasos
y 9 cajas q contenían 5 vasos
EJEMPLO: 4x3=12 + 9x5=45
12+45=57
esa es la respuesta y te puse el ejemplo para q le entiendas más