Divide and round to the nearest hundredth.190.6 ÷ (-2.3)
A. -8.29
B. 8.29
C. 82.87
D. -82.87
Answer: D
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Simplify the following expression.
?
?
A. 
(x + y)2?
B. 
(x + y)
C. 
(x + y)
D. 
(x + y)3
E. 
(x + y)2
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.
The number of bridges in the optimal solution to this problem is
A. 9. B. 8. C. 0. D. 7. E. none of these
Use factoring to solve the equation.6n2 + 14n = 0
A. - 
, 14
B. 0
C. - 
D. - 
, 0
Find the focus and directrix of the parabola.x2 = 32y
A. F: (8, 0); D: x = 8 B. F: (0, -8); D: x = - 8 C. F: (0, 8); D: y = -8 D. F: (8, 0); D: y = 8