Provide an appropriate response.Explain the error in the following: x2 - y2 = (x - y)2
What will be an ideal response?
x2 - y2 is a difference of squares, not a binomial square.
x2 - y2 = (x + y)(x - y)
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Solve the problem.The van der Waals equation provides an approximate model for the behavior of real gases. The equation is P(V, T) = 
- 
, where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the partial derivative of the function with respect to each of the independent variables.
A. PV = 
- 
; PT = 
B. PV = 
; PT = 
- 
C. PV = - 
+ 
; PT = 
D. PV = 
- 
; PT = 
Graph the ellipse and label the center.
+ 
= 1
A. C(-9, 12)
B. C(-9, -12)
C. C(9, 12)
D. C(9, -12)
Find the domain of the rational function.f(x) = 
A. (-?, ?) B. (-?, -4) ? (-4, ?) C. (-?, 4) ? (4, ?) D. (-?, - 3) ? (- 3, 3) ? (3, ?)
Solve. If necessary, round answers to the nearest hundredth.15 students were asked how much cash they had with them and the results were recorded.22, 25, 15, 10, 0, 5, 2, 40, 105, 20, 15, 60, 45, 8, 11How many students had less cash than the mean?
A. 8 B. 4 C. 11 D. 10