162 km : 60 min
60 divided by 60 = 1
162 divided by 60 = 2.7
2.7 km a second
2.7 km = 2,700 m
2,700 m/second
2,700 m times 20 = 54,000 m in 20 seconds.
The answer is C elimination
Answer:
198 cm³
Step-by-step explanation:
V = π r² h
V = 22/7 × 3² × 7
V = 22/7 × 9 × 7
V = 22 × 9
V = 198 cm³
So the range is how far the submarine can go, in between the minimum and maximum depths. The first submarine has to go down 319 feet, and it can go all the way down to 846 feet, so you subtract the two numbers to find the space in between which is 527 ft. That is the range of the first submarine. Do the same for the second and you get 472 ft. Now you see that sub A has a greater range with 527 ft.
Answer:
The value of the test statistic is t = 2.19.
Step-by-step explanation:
Central Limit Theorem
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
Our test statistic is:
In which X is the sample mean, is the expected mean, is the standard deviation and n is the size of the sample.
Sample of 1300 voters:
This means that
Found that 45% of the residents favored construction.
This means that
A political strategist wants to test the claim that the percentage of residents who favor construction is more than 42%.
This means that , and by the Central Limit Theorem:
So, the test statistic is:
The value of the test statistic is t = 2.19.