Provide an appropriate response.Without actually graphing, determine which one of the following systems of inequalities has no solution.
A. x ? 2
y ? 3
B. x > 2
y< 3
C. x + y ? 2
x - y ? 3
D. x + y < 2
x + y > 3
Answer: D
Mathematics
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A. 4(2y + 1)(y - 5) B. 4(2y - 1)(y + 5) C. prime D. (8y - 4)(y + 5)
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Two curves are said to be orthogonal if their tangent lines are perpendicular at each point of intersection of the curves. Show that the curves of the given equations are orthogonal.
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Use the quadratic formula to solve the equation.6x2 + 22x = - 15
A. 
B. 
C. 
D. 
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Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 
B. 
C. 
D. 1
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