Solve the problem.A pharmaceutical company introduces a new headache medication on the market. They advertise the product on television and find that the percentage P of people who buy the product after t weeks satisfies the function 
What percentage buy the product after 15 weeks?
A. 16.5%
B. 11%
C. 13.8%
D. 15.2%
Answer: C
Mathematics
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Find the global maxima and minima of the function on the given domain.
on the disk bounded by the circle 
A. Global maximum: 72 at 
and 
global minimum: 45 at 
and 
B. Global maximum: 72 at 
and 
global minimum: 0 at 
C. Global maximum: 117 at 
global minimum: 0 at 
D. Global maximum: 45 at 
and 
global minimum: 0 at 
Mathematics
Find the domain of the function.F(z) = 
A. {z|z is any real number} B. {z|z ? -5} C. {z|z ? 0} D. {z|z > -5}
Mathematics
Find the number of subsets of the set.{math, English, history, science, art}
A. 24 B. 32 C. 16 D. 28
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics