Find the intensity I of an earthquake measuring R on the Richter scale 
.
?
Costa Rica in 2009, 
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Simplify.
? 
A. -26 B. -25 C. -13 D. 28
Mathematics
Solve using Cramer's Rule.
A. (1, 0, 2) B. (1, 2, 0) C. (0, 2, 1) D. No solution
Mathematics
Solve the problem.How many pieces of yarn 5
inches long can be cut from a 76 inch piece of yarn? Round answer to the nearest piece of yarn.
A. 97 pieces B. 418 pieces C. 13 pieces D. None of these
Mathematics
Use the change of base rule to find the logarithm to four decimal places.log2 36.87
A. 5.2044 B. 0.1921 C. 1.5667 D. 18.4350
Mathematics