Use factoring techniques to solve the quadratic equation.x2 + x - 72 = 0
A. {8, 9}
B. {-8, 9}
C. {-9, -8}
D. {-9, 8}
Answer: D
Mathematics
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Subtract the polynomials. Express your answer in standard form.(6x2 + 20x + 9) - (3x2 - 20x - 14)
A. 3x2 + 40x + 23 B. 66x11 C. 3x2 + 40x - 5 D. 3x2 + 23x - 5
Mathematics
Solve.What percent of 130 is 45.5?
A. 350% B. 0.35% C. 3.5% D. 35%
Mathematics
Solve the equation.
- x = 5
A. -7 B. 7 C. 6 D. -6
Mathematics
Write equations of the horizontal and the vertical lines that pass through the given point.
A. horizontal: y = - 
;
vertical: x = -1
B. horizontal: y = 
;
vertical: x = -1
C. horizontal: y = 
x;
vertical: x = -1y
D. horizontal: y = -1;
vertical: x = 
Mathematics