Determine whether the following is an expression or an equation. If it is an expression, simplify if possible and evaluate it for x = 2. If it is an equation, solve it.
+ 
A. Expression; x - 8; undefined
B. Equation; 4
C. Expression; x + 8; undefined
D. Equation; 16
Answer: C
Mathematics
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Provide an appropriate response.The demand equation for a product is p = 400 - 0.2q2. Find the rate of change of quantity with respect to price.
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Simplify.
A. 
B. 
C. 
D. 
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Identify the equation as a parabola, circle, ellipse, or hyperbola.6x2 = 25 - 6y2
A. Parabola B. Ellipse C. Hyperbola D. Circle
Mathematics