Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when 
and 
.
A. 4800 bacteria; 1,228,800 bacteria B. 4800 bacteria; 76,800 bacteria C. 4800 bacteria; 38,400 bacteria D. 19,200 bacteria; 76,800 bacteria
Add as indicated.(14s + 12t) + (6t - 2s)
A. 12s + 18t B. 30st C. 16s + 18t D. 20s + 10
Solve the problem.A one-story building is 410 ft by 170 ft. If a square patio with sides 21 ft occupies the center of the building, how much area remains for offices?
A. 1139 ft2 B. 1160 ft2 C. 1076 ft2 D. 69,259 ft2
For what values of does the curve have maximum and minimum points for the given function 
?
Select the correct answer.
a. For 
a parabola whose vertex (0, 2), is the absolute maximum.
For 
opens downward with one minimum points.
For c < 0, the graph opens upward, and has an absolute maximum at x=0 and no local minimum.
b. For 
a parabola whose vertex (0, 2) is the absolute maximum.
For 
opens upward with two minimum points.
For c < 0, the graph opens downward, and has an absolute minimum at x=0 and no local minimum.
c. For 
a parabola whose vertex (0, 3), is the absolute maximum.
For 
opens upward with two minimum points.
For c<0, the graph opens downward, and has an absolute minimum at x=0 and no local minimum.
d. For 
a parabola whose vertex (0, 1), is the absolute maximum.
For 
opens upward with two minimum points.
For c<0, the graph opens downward, and has an absolute maximum at x=0 and no local minimum.