Answer:

Step-by-step explanation:
Using the rule of exponents
=
, hence
f(- 2) =
=
= 
Answer:
If they are parallel then angle b is
A. 51°
Step-by-step explanation:
Answer:
136 cm²
Step-by-step explanation:
Surface area = 2(lw+wh+hl)
l = 7
w = 2
h = 6
so,
2(7×2+2×6+7×6)
= 136 cm²