I'm not really sure, because 650 marked down by 27% would be 474.5, which is close but not exact.
Hope I helped a little bit, sorry if I'm wrong.
Answer:
Perimeter: 24
Area: 1105.92
Step-by-step explanation:
Perimeter:
Add up all of the numbers
Area:
Multiply all of the numbers
(I'll redo it if this isn'twhat you meant by)
Answer:
Step-by-step explanation:
a)
Confidence interval in less than symbol expressed as
Where 
is sample mean and 
is margin of error.
b)
The given t interval is 
That is 
and 
Solve these two equation by adding together.
Solve this value of \bar{x} in equation and solve for
Best point estimate of 
Best point estimate of margin of error = 0.193
c)
Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that
sample data appear to be form a population with normal distribution.
For the first 6 trips she walked 3.2 kilometers and for the next 6 she made another 3.2 which would be 6.4 kilometers for 12 trips now she made 3 more trips which is half of the amount she originally did so it would be half of the distance also so 3.2 divided by 2 is 1.6 kilometers so for the last 3 trips she walked 1.6 kilometers. now add up all the distance she walked so 6.4 kilometers for the 12 trips plus the 1.6 for the other 3 trips is 8 kilometers in total. she walked 8 kilometers after 15 trips.
Answer:
$3.50
Step-by-step explanation:
if you divide 42 by 12 you get 3.5
