Use a graph to estimate the solution.The value, v, in hundreds of dollars, of Juan's computer is approximated by 
where t is the number of years since he first bought the computer. Graph the equation and use the graph to estimate the value of the computer 6 years after it was purchased.
A. $880
B. $1300
C. $700
D. $400
Answer: C
Mathematics
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Find the opposite of the expression.3x2 + 9x - 6
A. -3x2 + 9x + 6 B. -3x2 - 9x + 6 C. 3x2 - 9x + 6 D. -3x2 - 9x - 6
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Solve the problem.Let f(x) = x-1.24 - x2.7. Approximate f(2.72) to the nearest hundredth.
A. x ? -14.35 B. x ? -14.62 C. x ? 1.73 D. x ? 3.39
Mathematics
Graph.3x + 4y = -20
A. 
B. 
C. 
D. 
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Solve the system of equations by elimination.
A. (-3, 1) B. (1, -3) C. infinitely many solutions D. no solution
Mathematics