I need this answer quickly please!! and thank you The radius of a hemisphere is 6 inches. Which formula can be used to find the surface area of the hemisphere? S = 3π(12)2 S = 2π(12)2 S = 2π(6)2 S = 3π(6)2

what are the things "represented below"?

step-by-step explanation:

nobody can if you dont give the choices

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!