Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a12 when a1 = 2,000, r = - 
.
A. - 
B. 
C. 
D. - 
Answer: A
Mathematics
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Evaluate the integral.
A. 
j + 
k
B. - 
?i + 
j + 
k
C. - 
?i + 
j + 
k
D. 
i + 
j - 
k
Mathematics
Evaluate the determinant.
A. -1 B. 0 C. -90 D. 90
Mathematics
Find the vertices of the ellipse.
+ 
= 1
A. (-1, -10), (-1, 2) B. (-14, -4), (6, -4) C. (-1, -14), (-1, 6) D. (-1, -12), (-1, 4)
Mathematics
Find the volume.Find the volume of the right trapezoidal pyramid. Round to the nearest hundredth.
A. 658.56 yd3 B. 329.28 yd3 C. 1975.68 yd3 D. 987.84 yd3
Mathematics