Provide an appropriate response.The intensity of an earthquake is measured on the Richter scale by the formula Richter scale rating = log
, where I0 is the measure of the intensity of a very small earthquake. Find the Richter scale rating of an earthquake having intensity 20I0.
A. 20
B. 1.3010
C. 2
D. 2.9957
Answer: B
Mathematics
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A. -18x8 - 6x7 B. -18x8 + 2 C. -24x7 D. -18x - 6
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Provide an appropriate response.Factor: x2 + x - 20
A. (x - 4)(x + 5) B. (x - 1)(x + 20) C. (x + 4)(x - 5) D. (x - 10)2
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Perform the indicated operation.
÷ 
A. 3
B. 
C. 
D. -3
Mathematics