Find the exact value of the expression.
A. 
B. 
C. - 
D. - 
Answer: C
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A plane has normal vector n and passes through the point P. Find an equation for the plane.  figure 1.png)
What will be an ideal response?
Factor by grouping.x3 - 2x2 + 9x - 18
A. (x2 + 9)(x - 2) B. (x + 9)(x2 - 2x)(x - 2) C. (x2 - 2x) + 9(x - 2) D. x(x2 - 2x + 9) - 18
Solve the problem.An office contains 1000 ft3 of air initially free of carbon monoxide. Starting at time = 0, cigarette smoke containing 4% carbon monoxide is blown into the room at the rate of 0.5 ft3/min. A ceiling fan keeps the air in the room well circulated and the air leaves the room at the same rate of 0.5ft3/min. Find the time when the concentration of carbon monoxide reaches 0.01%.
A. 6.01 min B. 5.01 min C. 7.01 min D. 8.01 min
Solve the problem. Round answer to the nearest tenth, if necessary.The position of an object moving in a straight line is given by s
= t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long will it take the object to move 
?
A. 9.7 sec B. 20.0 sec C. 9.9 sec D. 20.9 sec