Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km. Find the distance between City E, 53° N and City F, 55° S. (Round to the nearest kilometer.)
A. 12,064 km
B. 12,072 km
C. 215 km
D. 223 km
Answer: A
Mathematics
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Find the first term a1 and the common difference d of the arithmetic sequence.607, 595, 583, 571, . . .
A. a1 = 607, d = 607 B. a1 = -12, d = -607 C. a1 = 607, d = -12 D. a1 = -12, d = 12
Mathematics
a = 6, b = 4, and c = 5. Using the Law of Cosines, find the values of angles B and C.
a. B = 55.7ø, C = 53.13ø b. B = 53.13ø, C = 41.40ø c. B = 41.40ø, C = 55.77ø d. B = 82.82ø, C = 41.40ø e. B = 82.82ø, C = 53.13ø
Mathematics
Solve the problem.Round 38,667,325 to the nearest million.
A. 39,000,000 B. 38,000,000 C. 38,667,000 D. 38,700,000
Mathematics
A die is rolled twice. Write the indicated event in set notation.The sum of the rolls is 9, and one roll is a 6.
A. {(3, 6)} B. {(6, 3), (3, 6)} C. {(6, 3)} D. ?
Mathematics