Provide an appropriate response.If f(b) = 4 and f(x) is decreasing on the interval [a, b], then which method of estimating the area under the graph of f(x) and above the x-axis will yield the lowest value? Assume that n = 10 in all cases.
A. Using left endpoints
B. Using midpoints
C. Cannot be determined
D. Using right endpoints
Answer: D
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Solve the problem.The concentration of a certain drug in the bloodstream x hr after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.52.
A. 0.42 B. 0.14 C. 0.18 D. 0.20
Provide an appropriate response.Solve the equation: 5x - (x - 3) = 9
A. x = 
B. x = 1
C. x = 
D. x = 2
Find the Taylor series for the given function.f(x) = x5 cos ?x
A. 
B. 
C. 
D. 
Julio purchased 400 shares of a certain stock for $24,750 (including commissions). He sold the shares 6 year(s) later and received $32,800 after deducting commissions. Find the effective annual rate of return on his investment over the 6-year period. Round your answer to the nearest hundredth. ? __________%
Fill in the blank(s) with the appropriate word(s).