Determine whether the sequence is geometric.an = 4 - 8n2
A. Geometric
B. Not geometric
Answer: B
Mathematics
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 5 and x = 5. The cross sections perpendicular to the x-axis are circular disks whose diameters run from the parabola y = x2 to the parabola y = 50 - x2.
A. 
?
B. 
?
C. 5000?
D. 
?
Mathematics
Convert the given equation to parametric equations. Answers may vary.x = y2 - 6y + 9
A. x = t2 + 6t + 9, y = t B. x = t2, y = t + 3 C. x = t, y = t2 - 6t + 9 D. x = t2 - 6t + 9, y = t
Mathematics
Determine whether the proportion is true or false by writing the ratios in lowest terms.
= 
A. True B. False
Mathematics
Write an equation of the line.
A. y = 
x - 8
B. y = -8x + 
C. y = -8x
D. y = 
x - 8
Mathematics