Perform the indicated operation and write the answer in simplest form.
? 
A. 
B. 
C. 
D. 
Answer: C
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Find a parametrization for the line segment joining the points.(-2, 0, -5), (0, -4, 0)
A. x = 2t - 2, y = -4t, z = 5t - 5, 0 ? t ? 1 B. x = 3t, y = 5t - 4, z = 6t, 0 ? t ? 1 C. x = -2t, y = 4t - 4, z = -5t, 0 ? t ? 1 D. x = 3t - 2, y = 5t, z = 6t - 5, 0 ? t ? 1
Solve.The amount of particulate matter left in solution during a filtering process is given by the equation 
where n is the number of filtering steps. Find the amounts left for 
and 
(Round to the nearest whole number.)
A. 800, 25 B. 1600, 50 C. 800, 50 D. 800, 12,800
Fill in the blank with one of the words or phrases listed below. 
The 
of a polyhedron is the sum of the areas of the faces of the polyhedrons.
A. perimeter B. surface area C. volume D. area
Add.[2 + (-6)] + (-7 + 4)
A. 19 B. 7 C. -7 D. -15