Word math problem

Question

Use the formula R=log(a/t)+b to find the intensity R on the Richter scale, given that amplitude a is 293 micrometers, time T between waves is 2.3 seconds, and B is 2.5. Round answer to one decimal place. 

 

 

 

 

 

 

 

 

 

 

(Use common logarithms)

Answer 1

 

using the information you provided, R = log₁₀ (a/t) + b

 

given that a = 293, t = 2.3, and b = 2.5

 

then R = log (293/2.3) +2.5 = log 127.39 +2.5 = 2.10 + 2.5 = 4.6