The function  is one-to-one on the domain  . Find 

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?



A.
B.
C.
D.
E.

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Answer: C

Mathematics

Find all the first order partial derivatives for the following function.f(x, y) = xye-y

A.  = ye^-y;  = xe^-y(1 - y)
B.  = ye^-y;  = xe^-y
C.  = ye^-y;  = xe^-y(y - 1)
D.  = ye^-y;  = - xye^-y

Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.Find the area of the circular racetrack.(Use 3.14 for ?. Round to the nearest foot.) r = 85 ft R = 115 ft

A. 11,304 ft2 B. 22,687 ft2  C. 18,840 ft2  D. 41,527 ft2 

Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 75°

A.
B. - 
C.
D. - 

Find the uncoded 1 × 3 row matrices for the message "MERRY CHRISTMAS"; then encode the message using the encoding matrix . Show all your work.

What will be an ideal response?