Find the least common denominator for the given set of denominators.30, 80, 50
A. 400
B. 600
C. 1,200
D. 240
Answer: C
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New telephone lines must be installed to connect 9 cities (A, B, C, D, E, F, G, H and J). 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.
The total cost of the optimal solution to this problem is
A. 21 million. B. 19 million. C. 20 million. D. 18 million. E. none of these
Translate the expression into a word phrase.
k
A. The quotient of 
and k
B. 
increased by k
C. k more than 
D. The product of 
and k
Use vertices and asymptotes to graph the hyperbola.x2 - 9y2 = 36
A. 
B. 
C. 
D. 
Solve by completing the square.2x2 + 7x + 3 = 0
A. 
B. -3, -
C. 3, -1
D. -2 ± 