Solve the system by the substitution method.y = 3x2 + 6x
A. {(2, 0), (-3, 9)}
B. {(1, 9), (-6, 72)}
C. {(-2, 0), (-3, 9)}
D. {(2, 0), (3, 45)}
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
Mathematics
Find the center of the hyperbola. 16(x + 3)2 - 25(y + 1)2 = 400
A. (2, -1) B. (-1, -3) C. (3, 1) D. (-3, -1)
Mathematics
Determine whether the equation defines y as a function of x. x = y2
A. function B. not a function
Mathematics
Solve.The Santos family saves 0.209 of their income. Express this as a percent.
A. 20.9% B. 0.0209% C. 2.09% D. 0.00209%
Mathematics