In this problem, 
and its graph are given. Use the graph of 
to determine where 
is concave down.
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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Find the integral.
dx
A. 
+ C
B. 
e
+ C
C. 
e
x3/2 + C
D. 
+ C
Solve the problem.A bond mutual fund grows by 5% in 2014 and by 10% in 2016. By approximately how much did the fund grow in 2015 so as to increase by a total of 40% during the three year period?
A. 21% B. 25% C. Too little information is given. D. 26% E. 16%
Solve the problem.The purchasing power of A dollars after t years of r% inflation is given by the model P = Ae-rt. Assume the inflation rate is currently 6.6%. How long will it take for the purchasing power of $1.00 to be worth $0.67? Round the answer to the nearest hundredth.
A. 0.61 years B. 0.06 year C. 6.07 years D. 10.15 years
Multiply the polynomials and simplify by combining like terms.(x + 3)(x - 3)(2x - 7)
A. 2x3 - 19x2 + 60x - 63 B. 2x3 + 5x2 - 24x - 63 C. 2x3 - 7x2 - 18x + 63 D. 2x3 - 7x2 + 18x - 63