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Alexxandr [17]
3 years ago
6

If f(x) = 5x2 - 3x , what is f(-3)

Mathematics
2 answers:
stiks02 [169]3 years ago
8 0

Answer: = -21

Step-by-step explanation:

5\left(-3\right)\left(2\right)-3\left(-3\right)

=-30-3\left(-3\right)

=-30-\left(-9\right)

=-21

Whitepunk [10]3 years ago
7 0
If the x between 5 and 2 is a letter then the answer is -21
If it’s a multiplication sign then it’s 19
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A corporation must appoint a president, chief executive officer, chief operating officer and chief financial officer. It also ap
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Answer:

Part a: The number of ways in which the candidates can be appointed on the executive posts are 11880.

Part b: The number of ways in which the candidates can be appointed as members of the planning committee are 495.

Step-by-step explanation:

As the complete question is not given a similar question is found online and is attached herewith.

Part a: Number of ways in which 12 candidates can be appointed for President, Chief Executive Officer, Chief Operating Officer and Chief Finance Officer.

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As the order is important the number of ways are identified using Permutations given as

Number\,\ of\, ways=^{12}P_4\\Number\,\ of\, ways=\frac{12!}{(12-4)!}\\Number\,\ of\, ways=\frac{12!}{8!}\\Number\,\ of\, ways=11880

So the number of ways in which the candidates can be appointed on the executive posts are 11880.

Part b: Number of ways in which 12 candidates can be appointed as members of the planning committee.

Number of Candidates=12

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As the order is not important the number of ways are identified using Combinations given as

Number\,\ of\, ways=^{12}C_4\\Number\,\ of\, ways=\frac{12!}{(12-4)!4!}\\Number\,\ of\, ways=\frac{12!}{8!4!}\\Number\,\ of\, ways=495

So the number of ways in which the candidates can be appointed as members of the planning committee are 495.

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Read 2 more answers
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