Solve the problem.Find out how long it takes a $3200 investment to double if it is invested at 
compounded monthly. Round to the nearest tenth of a year. Use the formula 
.
A. 10.1 years
B. 9.7 years
C. 9.9 years
D. 10.3 years
Answer: C
Mathematics
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Find the maximum rate of change of f(x,y) = xy² +?y at the point (2, 1). In what direction does it occur?
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Mathematics
Match the function with the graph that best describes the situation.The amount of rainfall as a function of time, if the rain fell more and more softly.
A. 
B. 
C. 
D. 
Mathematics
Write the product as a sum or difference containing only sines or cosines.sin(9?) cos(5?)
A. 
[sin(14?) + sin(4?)]
B. 
[sin(14?) + cos(4?)]
C. sin cos(45?2)
D. 
[cos(14?) - cos(4?)]
Mathematics
Compute the partial sum of the geometric series for the stated value of n. Round your answers to four decimal places.ak = 
(k-1); n= 8
A. S8 = -2.2138 B. S8 = 5.2333 C. S8 = 2.8962 D. S8 = 0.8333
Mathematics