Factor by grouping. Assume any variable exponents represent whole numbers.x3 - 4x2 - 3x + 12
A. (x - 4)(x2 - 3)
B. (x - 4)(x - 3)
C. (x + 4)(x2 + 3)
D. (x - 3)(x2 - 4)
Answer: A
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Determine the number of triangles with the given parts.a = 6, b = 5, c = 11
A. 0 B. 1 C. 2 D. 3
Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by y = x3, on the right by the line 
, and below by the x-axis
A. 4?
B. 
?
C. 
?
D. 
?
The calculator graphs shows the x-values of the x-intercepts of the graph of the polynomial in the equation. Use the graphs to solve the equation.-x2 + 4x + 5 = 0
A. {-1, 5} B. {-5, 1} C. {4, 5} D. {-5, -1}
Solve the problem.The amount of particulate matter left in solution during a filtering process is given by the equation P = 1000(2)-0.4n, where n is the number of filtering steps. Find the amounts left for 
and 
. (Round to the nearest whole number.)
A. 1000, 31 B. 1000, 250 C. 2000, 250 D. 1000, 4000