Solve the problem.A 200 gal tank is half full of distilled water. At time = 0, a solution containing 1 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 
When the tank is full, how many pounds of concentrate will it contain?
A. 150 pounds
B. 120 pounds
C. 100 pounds
D. 200 pounds
Answer: A
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Solve the problem.Write an iterated triple integral in the order 
for the volume of the tetrahedron cut from the first octant by the plane 
.
A. 
B. 
C. 
D. 
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = x2 - 3, [0, 8], left-hand endpoint
A. 
B. 
C. 
D. 
Provide an appropriate response.Given two linear equations in standard form, how can you determine if the lines are parallel by inspection? Create examples to illustrate your answer.
What will be an ideal response?
Determine whether the pair of lines is parallel, perpendicular, or neither.y = 
x - 7 and y = - 
x + 5
A. parallel B. perpendicular C. neither