Divide.

A. 3 - i
B. -  - 3i
C.  + 3i
D. -3 + i


Answer: D

Mathematics

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New telephone lines must be installed to connect 8 cities (A, B, C, D, E, F, G, and H). Due to government regulations, the only possible connections that are allowed are shown by the edges on the network below. The numbers on the edges indicate the cost (in millions of dollars) of each possible connection. The telephone company wishes to connect the cities in the cheapest possible way. Using Kruskal's algorithm, which edge is chosen last?

A. AG B. BH, EG or DE C. BC D. CD or EF E. none of these

Mathematics

Write the number in words.40,255,005

A. forty million, two hundred fifty-five thousand, five B. forty million, two hundred fifty-five thousand, fifty C. four million, two hundred fifty-five thousand, five D. four million, two hundred fifty-five thousand, fifty

Mathematics

Write a formula for the general term (the nth term) of the geometric sequence.3, 6, 12, 24, 48, . . .

A. an = 3(2)n - 1 B. an = a1 + 2n C. an = 3(2n) D. an = 3(2)n

Mathematics

Find the indicated intercept(s) of the graph of the function.y-intercept of f(x) = 

A.
B.  
C.  
D. none

Mathematics