Answer:
17.1
Step-by-step explanation:
Answer:
-31
Step-by-step explanation:
a - 8x will change to (-7) - 8(3) = -31
Ay^2+2ay-3a
a(y^2+2y-3)
a(y-1)(y+3)
..........................................................................
Answer:
9 : 1
Step-by-step explanation:
given a linear ratio = a : b, then the corresponding area ratio is
a² : b²
Here the linear ratio of their edges = 3 : 1, hence
ratio of surface areas = 3² : 1² = 9 : 1
