Simplify.
A. 
B. 
C. 
D. 
Answer: A
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Solve.Use the approximations ln 4 ? 1.386 and ln 5 ? 1.609 together with the properties of natural logarithms to calculate an approximation to ln 20.
A. 2.230 B. 2.995 C. 2.996 D. 6.930
Graph the function as a solid line or curve and its inverse as a dashed line or curve on the same axes.f(x) = 3x
A. 
B. 
C. 
D. 
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Evaluate the expression. Round your result to two decimal places.
?
?
A. -1.53 B. -0.53 C. 2.47 D. 0.47 E. 1.47