The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. the teacher draws a random sample from the following groups:
• all teachers in the school
• all boys in each grade
• all students in the speech club
• all students in each grade
which group best represents the population she should take a random sample from to get the best results for her survey?
a. all teachers in the school
b. all boys in each grade
c. all students in the speech club
d. all students in each grade

D.

Step-by-step explanation:

A. wouldn't be the correct answer because the language arts teacher wants to know whether the students prefer debate or speech, not the teachers.

B. wouldn't be the correct answer because the sample doesn't include girls.

C. wouldn't be the correct answer because the students most likely prefer speech.

D. is the correct answer because the sample includes all students in each grade.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

24

step-by-step explanation:

if it takes 8 pounds to make 12 divide 12 by 8 and you get 1.5, 1.5 x 16 = 24