Let t represent the # of hours required for the west-east flight.
Then (540 mph)(t) = 2700 miles, and t = 5 hours. Flying east-west should take 1 hour less, or 4 hours.
This east-west speed would be 2700 miles / 4 hours = 675 mph (answer)
Answer: test statistic = 0.002
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
µ = 15
For the alternative hypothesis,
µ > 15
The inequality sign means that it is right tailed.
Since the population standard deviation is not given, the distribution is a student's t.
Since n = 36,
Degrees of freedom, df = n - 1 = 36 - 1 = 35
t = (x - µ)/(s/√n)
Where
x = sample mean = 16.33
µ = population mean = 15
s = samples standard deviation = 2.54
t = (16.33 - 15)/(2.54/√36) = 3.14
We would determine the p value using the t test calculator. It becomes
p = 0.002
A(-5,5)
B(4,5)
C(2,0)
D(-5,-2)
AB,BC,CD,DA
AB = [4-(-5)),5-5]=[9,0]
Lenght
BC = [2-4,0-5]=[-2,-5]
Lenght
CD = [-5-2,-2-0]=[-7,-2]
Lenght
DA =[-5-(-5),-2-5]=[0,-7]
Lenght
sorted from longest to shortest:
AB, CD,DA,BC
Answer:
Step-by-step explanation:
Given
Required
The line of symmetry
This is calculated using:
Where:
So, by comparison:
So, we have:
6 rows of 8 would be: 6x8=48
48 total members.
There are many other ways, but two of them would be:
1) 3 rows of 16
2) 4 rows of 12