Classify the system as consistent or inconsistent, and dependent or independent.x + y = -1x - y = -11
A. Consistent and dependent
B. Consistent and independent
C. Inconsistent and dependent
D. Inconsistent and independent
Answer: B
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Solve the problem.A rock is thrown vertically upward from the surface of an airless planet. It reaches a height of 
meters in t seconds. How high does the rock go? How long does it take the rock to reach its highest point?
A. 360 m, 6 sec B. 714 m, 6 sec C. 1,320 m, 12 sec D. 720 m, 12 sec
Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total cost function is given by 
where x represents the number of boxes of computer chips produced. The total profit function, P(x), is such that 
Find P(x).
A. P(x) = -0.3x2 + 54x - 15 B. P(x) = 0.3x2 + 49x - 45 C. P(x) = 0.3x2 + 54x - 30 D. P(x) = -0.3x2 + 49x + 15
Solve the equation.b - 20.60 = 0
A. -19.60 B. -20.60 C. 19.60 D. 20.60
The equation of the line joining the following two points can be written as a determinant set equal to zero. Find the sum of the entries in the first column of that determinant. ? P(9, 3), Q(3, 2) ?
A. 
B. 
C. 
D. 
E. 13