If r = x y 1 1 0 g and A = 0 1 f g f c show that r^T Ar = 0 is the equation of the circle in R^2 with centre (−g, −f) and radius square root(g^2 + f^2 − c).

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

i think the correct option is the second option.

the answer is

d.

5.3066 m2

step-by-step explanation: