Solve the system by substitution.  x + 8y = 44-3x + 8y = 60

A. (-3, 5)
B. (4, 5)
C. No solution
D. (-4, 6)


Answer: D

Mathematics

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A.  
B. -  
C.
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The graph of a function f is given. Use the graph to answer the question.What is the domain of f?

A. {x|-60 ? x ? 55} B. {x|x ? 0} C. {x|-50 ? x ? 50} D. all real numbers

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Solve the problem.The number of dislocated electric impulses per cubic inch in a transformer when lightning strikes is given by D = 3100(4)x, where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at  and 

A. 3100; 3,174,400 B. 12,400; 3,174,400 C. 3100; 793,600 D. 3100; 62,000

Mathematics

Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 

A. f(x) = , g(x) = -19x2 + 50
B. f(x) = , g(x) = 
C. f(x) = -19x2 + 50, g(x) = 
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Mathematics