Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 14 terms of the geometric sequence: 
, - 
, 
, - 
, 
, . . . .
A. - 
B. - 
C. - 
D. - 
Answer: B
Mathematics
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Find the distance between points P1 and P2.P1(1, 4, 1) and P2(2, 5, 2)
A. 3
B. 2
C. 9
D. 
Mathematics
Solve and graph the inequality.24x + 8 - 4(5x + 3) ? 0
A. x ? 1
B. x > 1
C. x ? 1
D. x < 1
Mathematics
Graph the inequality.x - y < -5
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If a submarine goes 3k3 + 18k2 + 6k - 36 miles in3k + 6 hours, then what is its speed?
A. k3 + 4k2 - 6k mph B. k2 + 4k - 6 mph C. k2 - 4k + 6 mph D. k2 + 12k - 6 mph
Mathematics