On the Richter scale, the magnitude R of an earthquake is given by the formula 
where I is the intensity of the earthquake being measured and I0 is the standard reference intensity.
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What is the magnitude of an earthquake that has intensity 10 millions times that of I0?
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R = __________
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Suppose an earthquake is measured with a magnitude of 5 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake.
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Hint: Observe that 
and use logarithmic differentiation. Round your answer to the nearest integer.
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__________I0
What will be an ideal response?
7; 23,026
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
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A. 
B. 
C. 
D. 
Simplify the complex fraction using the Multiply by the LCD Method.
A. 
B. 
C. 
D. 
Use the quadratic formula or graphing methods to solve the inequality.6x2 - 27x + 6 ? 0
A. x ? 
? 4.266
B. x ? 
? 0.234
C. 
? 0.234 ? x ? 
? 4.266
D. x ? 
? 0.234 or x ? 
? 4.266
Solve the problem.Explain how the graph of y = log2 
can be obtained from the graph of y = log2 x.
What will be an ideal response?