Fill in the blank with one of the words or phrases listed below.
In a system of linear equations in two variables, if the graphs of the equations are different, the equations are 
equations.
A. independent
B. dependent
C. inconsistent
D. consistent
Answer: A
Mathematics
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Solve the quadratic inequality. Write your answer in interval notation.x2 - 10x + 21 ? 0
A. (-?, 3] B. (-?, 3] ? [7, ?) C. [7, ?) D. [3, 7]
Mathematics
The graph of a function f is given. On the same axes, sketch the graph of f-1. 
A. 
B. 
Mathematics
Solve.
The monthly payments on a $209,000 loan at 6.5% interest for 20 years is $1,559.14. How much of the first monthly payment will go toward interest?
A. $427.06 B. $1,132.08 C. $1,567.50 D. $1,099.19
Mathematics
State the domain of the given function.f(x) = 
A. {x|x > 3} B. {x|x = 3} C. {x|x is a real number and x ? 3} D. {x|x is a real number}
Mathematics