A robot can complete 3 tasks in 5/6 of an hour. Each tasks takes the same amount of time. How long does the robot take to complete 1 task?

16-17 min

Step-by-step explanation:

5/6 hour = 50 minutes

50 divided by 3 is approx. 16-17

Takes about 16-17 minutes to do 1 task

i dont know sorry

step-by-step explanation:

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!