Perform the indicated operations and write the result in standard form.(2 + 3i)(4 - i) - (1 - i)(1 + i)

A. 11 + 10i
B. 9 + 10i
C. 13 + 10i
D. 9 + 14i


Answer: B

Mathematics

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Use the commutative or the associative property to complete the statement. State which property is used.7 + (2 + 6) = (7 + )+ 6

A. -2; commutative property B. 2; commutative property C. 2; associative property D. -2; associative property

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Find the volume of the solid. Use  for ?.

A. 405 cu mi
B. 22 cu mi
C. 135 cu mi
D. 202 cu mi

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Decide whether or not the functions are inverses of each other.f(x) = (x - 3)2, x ? 3; g(x) =  + 3

A. No B. Yes

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Solve the problem.The average value of a certain type of automobile was $13,080 in 1992 and depreciated to $5220 in 1997. Let y be the average value of the automobile in the year x, where x = 0 represents 1992. Write a linear equation that models the value of the automobile in terms of the year x.

A. y = -1572x + 5220
B. y = - x - 5220
C. y = -1572x + 13,080
D. y = -1572x - 2640

Mathematics