Solve the problem.A satellite camera takes a rectangular-shaped picture. The smallest region that can be photographed is a 4-km by 6-km rectangle. As the camera zooms out, the length l and width w of the rectangle increase at a rate of 3 km/sec. How long does it take for the area A to be at least 4 times its original size?
A. 9.7 sec
B. 4.94 sec
C. 3.28 sec
D. 1.61 sec
Answer: D
Mathematics
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Simplify.
+ 
+ 
A. 
+ 3
B. 95
C. 
D. 
Mathematics
Solve the problem.Find any local extrema (maxima, minima, or saddle points) of 
given that 
and 
A. Local maximum at 
B. Local minimum at 
C. Local minimum at 
D. Saddle point at 
Mathematics
Compute the probability of an event for equally likely outcomes (theoretical probability).If a single die is rolled, what is the probability that the number rolled is less than 2?
A. 
B. 
C. 
D. 
Mathematics
Solve the system graphically.
A. (1, 1) B. (0, 1) C. (0, 0) D. (1, 0)
Mathematics