Caculate the average speed from points D to point E

20 seconds

Step-by-step explanation:

30 is where the E point is at while 10 is where D-point at.subtract these 2 and youll get 20

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!

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.