Let f (x, y, z) = 
. Compute f(1, -1, -2).Enter just an integer.
Fill in the blank(s) with the appropriate word(s).
Answer: 1
Mathematics
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Find the center and radius of the circle with equation 
.
?
A. Center: (7, 2)Radius: 5 B. Center: (-7, 2)Radius: 25 C. Center: (7, -2)Radius: 25 D. Center: (7, -2)Radius: 5 E. Center: (-7, 2)Radius: 5
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A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).How many passwords consist entirely of letters?
A. 52 × 51 ×50 × 49 B. 52 × 4 C. 524 D. 452 E. none of these
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Graph the piecewise defined function.
A. 
B. 
C. 
D. 
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Write the reciprocal of the number.-13
A. 
B. does not exist
C. 13
D. 
Mathematics