Solve the equation.-3.8x + 16.38 = -6.8
A. 6.1
B. -9.58
C. 2.5
D. -23.18
Answer: A
Mathematics
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Solve the equation.4(5 - 3x) = 
A. x = -3
B. x = 3
C. x = 
D. x = 128
Mathematics
Solve the problem.The cost in millions of dollars for a company to manufacture x thousand automobiles is given by the function C(x) = 5x2 - 40x + 144. Find the number of automobiles that must be produced to minimize the cost.
A. 64 thousand automobiles B. 4 thousand automobiles C. 20 thousand automobiles D. 8 thousand automobiles
Mathematics
Find the range of the quadratic function.f(x) = 2x2 + 2x - 5
A. (-?, - 
]
B. [- 
, ?)
C. (-?, - 
]
D. [- 
, ?)
Mathematics
Solve the problem.Each of ten tickets is marked with a different number from 1 to 10 and put in a box. If you draw a ticket from the box, what is the probability that you will draw 2, 8, or 3?
A. 
B. 
C. 
D. 
Mathematics