Find the maximum and minimum values of the function
?

?
subject to the constraint .
?

A.
B.
C.
D. ?
E. ?

Answer: C

Mathematics

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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i  + 3ln(t - 7)j - k

A. v(0) = j
B. v(0) = -4i - j
C. v(0) = 4i - j
D. v(0) = -j

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Find the intersection of the given intervals.(7, ?) ? [16, ?)

A. [16, ?) B. (7, 16] C. (-?, ?) D. (7, ?)

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Solve.If the start-up costs for a small sandwich shop are $320 per day and it costs an average of $2 per sandwich, the average cost per sandwich for making x sandwiches is given by, C = where C is in dollars. Find the number of sandwiches made if the average cost per sandwich is $6.

A. 8 sandwiches B. 80 sandwiches C. 90 sandwiches D. 160 sandwiches

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Find the probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability that the card will have a value of 3 and be a face card?

A. 0 
B.
C.
D.

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Mathematics