Solve the problem.City A is nearly at the same longitude as City B, but City A's latitude is 58°S while City B's latitude is 16°S. About how far away is City A from City B?
A. 4200 mi
B. 2940 mi
C. 5180 mi
D. 7400 mi
Answer: B
Mathematics
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Solve the problem.A geometric progression is a sequence of terms in which each term is r times the preceding term. The sum of the first two terms of such a sequence, where a is the first term, is given by the expression 
. Simplify the expression.
A. a(1 + r) B. a + r C. a(1 - r) D. a(1 + r2)
Mathematics
Find the length of an arc intercepted by a central angle ? in a circle of radius r. Round your answer to 1 decimal place.r = 16.12 ft; ? = 
radians
A. 9.2 ft B. 13.8 ft C. 4.6 ft D. 2.3 ft
Mathematics
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 6561
B. 9
C. 
D. not a real number
Mathematics
Find the LCD for the fractions in the list.
, 
A. 30r9s4 B. 30r12s5 C. 30r3s4 D. 30r9s
Mathematics