You wish to use a long string of random digits to randomly assign one-half of a group of 100 students to a treatment group. you assign consecutive number labels to all the students, starting with zero. you then break the long string into chunks of digits. should the chunks consist of single digits, pairs, triplets, or quadruplets?
a) quadruplets
b) single digits
c) triplets
d) pairs

10

step-by-step explanation:

-2 is the right

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!

1,8,15,22,29,36,43,50

step-by-step explanation: