?Let 
, 
. Find an elementary matrix E such that ![]()
src="https://sciemce.com/media/3/ppg__cognero__Chapter_2_Matrices__media__88eb2b1f-235a-43d9-90e9-27e4bc54251a.PNG" style="vertical-align:middle;" />.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Determine whether the sequence is geometric.an = 10n-1
A. Geometric B. Not geometric
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
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Write the decimal as a fraction or mixed number in lowest terms.0.61
A. 
B. 
C. 
D. 
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Solve the problem.The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 13 miles? Round your answer to the nearest unit.
A. 172 units B. 215 units C. 153 units D. 189 units
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