11:51 AM Mon Apr 20
42%
2
usatestprep. com
Textbook 1: (2, 4, 6, 5,6,3,5,4,8, 7,5,4,1,2,4, 1, 5,3,4, 2}
Textbook 2: {3,4,9,7,5, 12, 5,3,4,8, 4, 3,9,6,7,1,5,6,8, 4}
Question:
Twenty words were randomly selected from two textbooks. Each set gives the number of letters in each of the twenty words for
that textbook
Briefly describe how the word lengths compare between textbook 2 and textbook 1.
Briefly describe the variability in the length of words in textbook 2 compared to textbook 1.

i say b hope this jdjdjdj

the answer is vanilla

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

oh

nu stiu chiar nu stiu sa o fac