Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = -2
B. x = 0
C. x = 2, x = -2
D. x = 2, x = 0
Answer: B
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Sketch D and g(D) from the description of D and change of variables 
x = u cos v, y = u sin v where D is the rectangle 1 ? u ? 2, 0 ? v ? 
?
A.
 ? |  |
B. None of these.
C.
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D.
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In the circuit below, find fCO and VO if Vin = 42 V, R = 22 K, and C = 0.00015 æF.
a. VO = 29.7 V, fCO = 48.2 KHz
b. VO = 21.0 V, fCO = 48.2 KHz
c. VO = 21.0 V, fCO = 31.7 KHz
d. VO = 29.7 V, fCO = 31.7 KHz
e. VO = 21.0 V, fCO = 34.1 KHz
Determine whether the graph of the equation is a circle, parabola, ellipse, or hyperbola. Do not graph.4y2 - 16x2 = 64
A. circle B. ellipse C. hyperbola D. parabola
Provide an appropriate response.Explain the difference between saying "3.9 from 6.1" and saying "3.9 less 6.1."
What will be an ideal response?