Find dy/dx by implicit differentiation.xy + x + y = x2y2
A. 
B. 
C. 
D. 
Answer: A
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Identify equilibrium values and determine which are stable and which are unstable.
= y2 - 16
A. y = 4 is a stable equilibrium value and y = -4 is an unstable equilibrium. B. y = -4 is a stable equilibrium value and y = 4 is an unstable equilibrium. C. y = -4 and y = 5 are stable equilibrium values. D. There are no equilibrium values.
Construct a frequency distribution table for the following values of resistance measured on a sample of 47 ê resistors:
43 ê, 47 ê, 50 ê, 44 ê, 43 ê, 46 ê, 45 ê, 47 ê, 47 ê, 51 ê, 43 ê, 46 ê, 48 ê, 47 ê, 47 ê, 46 ê, 45 ê, 48 ê, 46 ê, 46 ê, 48 ê. The following are values of resistance measured on a sample of 47 ê resistors. 43 ê, 47 ê, 50 ê, 44 ê, 43 ê, 46 ê, 45 ê, 47 ê, 47 ê, 51 ê, 43 ê, 46 ê, 48 ê, 47 ê, 47 ê, 46 ê, 45 ê, 48 ê, 46 ê, 46 ê, 48 ê.
A = 39ø, a = 10, and c = 8. Using the Law of Sines, find b.
a. 12.81 b. 6.91 c. 9.06 d. 14.85 e. No possible solution
Determine whether the equation defines y as a function of x. y2 + x = 4
A. function B. not a function