Consider an experiment taste-testing four types of chocolate chip cookies: 1 (brand A, chewy, expensive), 2 (brand B, crispy, expensive), 3 (brand C, chewy, inexpensive), 4 (brand D, crispy, inexpensive). We will use ten different raters randomly assigned to each type (40 total raters).
Answer the following questions:
a) Design contrasts to compare chewy with crispy, and expensive with inexpensive.
(b) Are your contrasts in part (a) orthogonal? Why or why not?

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!

i believe a. 12x≥120 is the answer

the option best identifies the textual evidence that supports this conclusion is c.) when an argument is over, how many weighty reasons does a man recollect which his heat and violence made him utterly forget? in order to recognize textual evidence is to identify the topic sentence where the author states the main idea. textual evidence is what supports the topic sentence or main idea of a passage.