Solve the problem.Find the distance in kilometers between the cities whose latitudes are given. Assume that the cities are on a north-south line and that the radius of the earth is 6400 km. City E, 13°N and city F, 47°S
A. 3790 km
B. 6702 km
C. 6710 km
D. 3798 km
Answer: B
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Provide an appropriate response.A hypothesis test is conducted with the following hypotheses: Null hypothesis: population mean = 100 Alternative hypothesis: population mean > 100A sample is selected and the sample mean turns out to be 118If the result is significant at the 0.01 level, which of the following is true?
A. If the null hypothesis were true, the chance that the sample mean would have been as big as 118 or bigger is greater than 0.01. B. If the null hypothesis were true, the chance that the sample mean would have been as small as 118 or smaller is less than 0.01. C. If the null hypothesis were true, the chance that the sample mean would have been as big as 118 or bigger is less than 0.01. D. If the alternative hypothesis were true, the chance that the sample mean would have been as big as 118 or bigger is less than 0.01.
Find the polar equation for the curve represented by the given Cartesian equation. Select the correct answer.
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Identify the exercise as either a permutation (order matters) or combination (order does not matter) counting problem. Do not actually solve the exercise.How many different user ID's can be formed from the letters W, X, Y, Z if no repetition of letters is allowed?
A. Permutation B. Combination
Graph.y = -3x2 - 2x - 6
A. 
B. 
C. 
D. 