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 100,000I0.
A. 5
B. 12
C. 4
D. 11
Answer: A
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The following table shows the average rice yield Y, in tons per hectare, on Asian farms t years after 1980. Based on the regression equation, how much increase in yield is expected over a 5-year period? t 5 10 20 25Y 3.38 3.61 3.96 4.14? ?
A. 0.20 tons per hectare B. 0.04 tons per hectare C. 0.36 tons per hectare D. 3.21 tons per hectare
Find the derivative of the function.f(x) = log8 (x7 + 1)
A. 
B. 
C. 
+ 7x6
D. 
Solve the problem.The carpenter needed a board that was 3.5 m long. How many inches will be needed?
A. 126.0 in. B. 3.8 in. C. 8.9 in. D. 137.8 in.
The figure below is a regular hexagon ABCDEF with center O. (P, Q, R, S, T, and U are the midpoints of the sides.)
A glide reflection sends the point A to the point Q and the point P to the point D. The image of U under this glide reflection is
A. R. B. B. C. C. D. P. E. none of these