Find the largest open intervals where the function is concave upward.f(x) = 4x3 - 45x2 + 150x
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the formula for the indicated variable.A = P(1 + rt)
for t
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics
Evaluate the integral.
Mathematics
Solve the problem.Plagiarism Copiers, Inc., is planning a new desk-top copier. For the first year, the fixed cost of setting up the production line is $31,300. The variable cost for producing each copier is $480. The revenue from each copier is $900. Find the profit or loss from the production and sale of 1600 copiers.
A. $2,176,700 B. $640,700 C. -$48,640,480 D. $703,300
Mathematics
Determine whether the improper integral 
diverges or converges. Evaluate the integral if it converges.
?
A. 9
B. 10
C. 
D. 20
E. diverges
Mathematics