Education attainment and delirium: Martins et al. (2017) conducted a study aimed to "analyze the relationship between educational attainment and delirium [i. e., a serious disturbance in mental abilities]" (p. 95). Based on the aims described in the study, what type of research design was likely the one utilized in this study: experimental, non-experimental/quasi-experimental , or correlational? Explain your answer.

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.  

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!