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
Answer: D
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New telephone lines must be installed to connect 8 cities (A, B, C, D, E, F, G, and H). Due to government regulations, the only possible connections that are allowed are shown by the edges on the network below. The numbers on the edges indicate the cost (in millions of dollars) of each possible connection. The telephone company wishes to connect the cities in the cheapest possible way.
The number of bridges in the optimal solution to this problem is
A. 9. B. 8. C. 0. D. 7. E. none of these
Evaluate the expression by hand, if possible.log 100,000 + log 0.1
A. 6 B. -4 C. -6 D. 4
Find the indicated term of the sequence.The seventh term of the geometric sequence 
, 
, 
, ...
A. 
B. 
C. 
D. 
Use DeMoivre's Theorem to find the indicated power. Write the answer in rectangular form.
3
A. 4 - 4
i
B. -4
+ 4
i
C. -4
- 4
i
D. 4
- 4
i