Answer:
x⁷+7x⁶+21x⁵+35x⁴+35x³+21x²+7x+1
Step-by-step explanation:
(x + 1)⁷: Pascal's Triangle for (a+b)⁷
a₇+7a⁶b+21a⁵b²+35a⁴b³+... + 7a¹b⁶ + b⁷
x⁷+7x⁶+21x⁵+35x⁴+35x³+21x²+7x+1
Well 12x5 is 60 and 8x5 is 40 then add them and it would be 100 altogether that would be B
Answer:
the circumference decreases by a factor 1/3.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Using the Sine rule in Δ ABC
= 
, substitute values
= 
( cross- multiply )
BC sin38° = 3 sin66° ( divide both sides by sin38° )
BC = 
→ A
