Use the most convenient method (graphing, substitution, or elimination) to solve the system of linear equations.
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the equation.x2 + 3x - 40 = 0
A. {-8, 1} B. {8, -5} C. {-8, 5} D. {8, 5}
Mathematics
Solve the problem.Tracey bought a diamond ring appraised at $2000 at an antique store. If diamonds have appreciated in value at an annual rate of 
what was the value of the ring 9 years ago? (Round your answer to the nearest dollar.)
A. $813 B. $331 C. $848 D. $4716
Mathematics
Use your graphing calculator to determine if the equation appears to be an identity or not by graphing the left expression and right expression together.
?
?
A. not an identity B. is an identity
Mathematics
Determine whether the graph shown is the graph of a polynomial function.
A. polynomial function B. not a polynomial function
Mathematics