How many social ties do you have? most us adults have social ties with a large number of people, including friends, family, co-workers, and other acquaintances. it is nearly impossible for most people to reliably list all the people they know, but using a mathematical model, social analysts estimate that, on average, a us adult has social ties with 634 people. a survey of 1700 randomly selected us adults who are cell phone users finds that the average number of social ties for the cell phone users in the sample was 664 with a standard deviation of 778. does the sample provide evidence that the average number of social ties for a cell phone user is significantly different from 634, the hypothesized number for all us adults? define any parameters used and show all details of the test.

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3

except if the answer is in the value of money, then, it will matter. it will have to be $0.40, but i can tell this is not a money question, so .4 should be the right one.