Will give 50 points asap
show steps
50 points
only give brainliest if show steps
and if i ask something in the comments, answer

C(12,5)=

12! / (5!(12-5)!) =

12 x 11 x 10 x 9 x 8 x 7 x6 x5x 4x 3 x2 / (5 x 4x 3 x2 (7x6 5x4x3x2) =

12 x 11 x 10 x 9 x 8 / 5 x 4x 3x2 =

95040 / 120  =

792

C(12,5)=

12! / (5!(12-5)!) =

12 x 11 x 10 x 9 x 8 x 7 x6 x5x 4x 3 x2 / (5 x 4x 3 x2 (7x6 5x4x3x2) =

12 x 11 x 10 x 9 x 8 / 5 x 4x 3x2 =

95040 / 120  =

792

Step-by-step explanation:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

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!