For the given geometric sequence, find the limit of the infinite series, if it exists. 
? 
n - 1
A. 3
B. No limit
C. 1
D. 
Answer: A
Mathematics
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Solve by making a u-substitution.x4 - 33x2 + 32 = 0
A. {±1, ±
}
B. {±1, ±4
}
C. {±1, ±4
}
D. {±2, ±4}
Mathematics
Evaluate.-128
A. 28 B. -1 C. 1 D. -28
Mathematics
Simplify the expression.-321/5
A. 32 B. -8 C. 16 D. -2
Mathematics
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long (to the nearest tenth) will it take the ball to fall 209 feet?
A. 3.6 sec B. 7.8 sec C. 2.6 sec D. 2.8 sec
Mathematics