A boat manufacturing company wants to know how long people own their boats before purchasing a new one. A random sample of 160 boat owners showed that, on average, they own a boat for 8.5 years with standard deviation of 3.55 years, before they purchase a new boat. Using 99% confidence interval what is the mean length of boat ownership for all boat owners

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

35 is an outlier

step-by-step explanation: