Write a numerical expression for the phrase and simplify it.The quotient of -10 and the sum of 3 and -8
A. 
; 2
B. -10 + 3 + (-8); -15
C. 
; 
D. 
; -2
Answer: A
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Find the focus and directrix of the parabola.y = -2x2
A. 
, x = 
B. 
, y = -
C. 
, x = 
D. 
, y = 
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 total cost of the optimal solution to this problem is
A. 24 million. B. 22 million. C. 21 million. D. 18 million. E. none of these
Solve the problem.Suppose that y is inversely proportional to x and that y = 26.4 when x = 6. Find the constant of proportionality k. Then use y = 
to find y when x = 36.
A. k = 4.4; y = 158.4 B. k = 176.4; y = 4.9 C. k = 146.4; y = 4.4 D. k = 158.4; y = 4.4
Simplify the complex fraction.
A. 
B. 10x - 50y2
C. 
D. 