Solve the proportion.
= 
A. 9
B. 1
C. 2
D. 4
Answer: B
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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 a11 when a1 = -5, r = 2.
A. -5120 B. 15 C. -10,240 D. -5116
Use the order of operations to simplify the expression.
A. - 14 B. undefined C. - 4 D. 14
Solve.A box is constructed by cutting out square corners of a rectangular piece of cardboard and folding up the sides. If the cutout corners have sides with length x, then the volume of the box is given by the polynomial 
Factor out the greatest common factor for this expression.
A. 4x(x2 - 18x + 45) B. 4(x3 - 18x2 + 45x) C. 4x(x2 + 18x + 45) D. 2x(2x2 - 36x + 90)
Solve the equation.
+ 
= 
A. {-1} B. {-3} C. {3} D. {1}