Jen is making a recipe for pancakes. a recipe calls for 4/10 kilogram flour and 12/100 kilogram sugar . part a if jen measures correctly and combines the two amounts, how much flour and sugar will she have? show your work part b how can you write your answer as a decimal?

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!

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: