Find the vertex of the parabola.-2x2 + 20x - y - 54 = 0
A. 
B. 
C. (5, -4)
D. 
Answer: C
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The graph of a function f is given. Use the graph to answer the question.Use the graph of f given below to find f(-15).
A. -15 B. 0 C. 25 D. -10
Write a numerical expression for the phrase and simplify it.Seven-ninths of the difference between -9 and -27.
A. 7(9) [(-9) - (-27)]; 14
B. 
[(-9) - (-27)]; 14
C. 
+ [(-9) - (-27)]; 42
D. 7(9) [(-9) - (-27)]; 1134
Provide an appropriate response.A television manufacturing company makes two types of TV's. The cost of producing x units of type A and y units of type B is given by the function C(x, y) = 100 + x3 + 64y3 - 96xy. How many units of type A and type B televisions should the company produce to minimize its cost?
Fill in the blank(s) with the appropriate word(s).
Solve.x = 144 ÷ 2
A. 70 B. 288 C. 72 D. 720