Evaluate the improper integral.

A.
B.
C.
D.


Answer: C

Mathematics

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Solve the problem.What region in the xy-plane minimizes the value of ?R

A. The ellipse 9x2 + 100y2 = 900
B. The ellipse  +  = 1
C. The ellipse 100x2 + 9y2 = 1
D. The ellipse  +  = 1

Mathematics

Express as a sum of logarithms.logr (7T)

A. logr 7 + logr T + logr r B. log 7 + log T C. logr 7 + logr T D. log7 r + logT r

Mathematics

Use integration by parts to find the integral below.  ?   ?

A.
B.
C.
D.
E.

Mathematics

Solve.An earthquake was recorded with a shock wave which was  times more powerful than the smallest measurable shock wave recordable by a seismograph.What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude on the Richter scale of an earthquake of intensity I is 

A. 0.7 B. 5.9 C. 6.9 D. 15.9

Mathematics