Construct a phase line. Identify signs of y' and y".
= y2 - 25
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Helen Weller invested $13,000 in an account that pays 3% simple interest. How much additional money must be invested in an account that pays 6% simple interest so that the average return on the two investments amounts to 4%?
A. $13,000 B. $10,000 C. $9000 D. $6500
Mathematics
Use the remainder theorem and synthetic division to find f(k).k = 4; f(x) = x3 - 2x2 + 5x - 2
A. 50 B. -78 C. 54 D. -76
Mathematics
Find the sum of the geometric series.
Express the answer as a fraction.
A. 
B. 
C. 
D. 
Mathematics
Use a graphing utility to find the discontinuities of the given rational function.f(x) = 
A. 3 B. 1 C. -1 D. The function is continuous for all values of x.
Mathematics