Which of the list of numbers are the given type of number?19, 
, -14, 0, 
, 
, 0.
, 0.78 Irrational numbers
A. 
B. 
, 
, 0.
C. 
, 
, 0.78
D. 
, 0.
Answer: A
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Find parametric equations for the line described below.The line through the point P(-5, 5, -4) parallel to the vector 
A. x = 5t - 5, y = -4t + 5, z = -5t - 4 B. x = -5t + 5, y = 4t - 5, z = -5t + 4 C. x = 5t + 5, y = -4t - 5, z = -5t + 4 D. x = -5t- 5, y = -4t + 5, z = 5t - 4
One model for expenditures at high schools gives the cost C, in dollars per pupil, as a function of the number n of students enrolled. The relationship is
.
?
Find the enrollment and cost that correspond to the minimum cost per pupil. Round your answers to the nearest whole number.
A. An enrollment of 1909 gives a minimum cost of $340 per pupil. B. An enrollment of 340 gives a minimum cost of $1909 per pupil. C. An enrollment of 1911 gives a minimum cost of $344 per pupil. D. An enrollment of 344 gives a minimum cost of $1911 per pupil.
Solve the system by substitution. 3u + v = 32u - 2v = -4
A. u = 
, v = 
B. u = 
, v = 
C. u = 
, v = - 
D. u = - 
, v = 
In the simplex tableau 
, what is the next pivot element?
A. 4 B. -1 C. 5 D. 6 E. none of these