Solve.How many different ways can a president, vice-president, secretary, and treasurer be chosen from a club with 8 members?
A. 24
B. 32
C. 70
D. 1680
Answer: D
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Solve the rational inequality. Express the solution using interval notation.
? 0
A. (-?, -8] ? (1, ?) B. [-8, 1) C. (1, 8) D. [-8, 8)
The table below shows Joe's golf scores from Saturday.
The locator for the 20th percentile is
A. 7.2. B. 3. C. 7. D. 8. E. none of these
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. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Prove that the identity is true.
?
What will be an ideal response?