Using the factoring method, solve for the roots of the quadratic equation.9y2 + 21y + 10 = 0
A. y = 
, y = 
B. y = 
, y = - 
C. y = - 
, y = - 
D. y = - 
, y = - 
Answer: C
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List all the elements of B that belong to the given set.B = {20, 
, -13, 0, 
, -
, 0.68, -5?, -0.444......}Negative rational numbers
A. -13, -
, -5?, -0.444.....
B. -13, -
, -0.444.....
C. -13, 0, -
, -0.444.....
D. -13, -0.444.....
Perform the indicated clock arithmetic.(-7) 
(-3) (12-hr clock)
A. 6 B. Does not exist C. 10 D. 8
Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.2x1 + x3 ? 562x1 + x2 ? 34 x1 + x3 ? 28
A. 2x1 + x3 - s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 B. 2x1 + x3 - s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28 C. 2x1 + x3 + s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 D. 2x1 + x3 + s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28
Use a system of equations to find the specified equation that passes through the points. Solve the system using matrices.
Parabola: y = ax2 + bx + c
A. ?
B. ?
C. ?
D. ?
E. ?