Answer is A
The binomial can be factored using the difference of squares formula a2-b2 = (a+b) (a-b) where a=x and b=9
(X+9) x(x-9)
Answer:
y = 7°
Step-by-step explanation:
By interior angle sum theorem of a triangle.

Answer:
226 cubed foot (rounded to 3 s.f.)
Step-by-step explanation:
Volume of cyclinder:
× r² × h
Volume of cylindrical tank =
× 3² × 8
= 72
= 226 cubed foot (rounded to 3 s.f.)