Solve the system of equations by graphing.
A. (2, -4)
B. no solution
C. (4, 2)
D. (2, 4)
Answer: D
Mathematics
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Solve the system by the substitution method.xy =12x + y =7
A. {(4, 3), (3, 4)} B. {(4, -3), (3, -4)} C. {(-4, 3), (-3, 4)} D. {(-4, -3), (-3, -4)}
Mathematics
Solve the problem.The following data represents the Olympic winning time in Women's 100 m Freestyle. 
Using the line of best fit (with slope correct to 5 decimal places) for the data set, predict the Olympic winning time in 2000.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the most convenient method (graphing, substitution, or elimination) to solve the system of linear equations.
A. 
B. 
C. 
D. 
E. 
Mathematics
Add. Use a horizontal format. (-4b² + 6b + 13) + (9b² - 15b – 16)
Mathematics