Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. not applicable
B. x = 0, y = 0, z = 1; (0, 0, 1)
C. x = 2, y = 1, z = 0; (2, 1, 0)
D. x = 0, y = 1, z = 0; (0, 1, 0)
Answer: A
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Evaluate the integral.
dx
A. 8
+ 1 - 1
B. x
+ 1 + C
C. 
D. 8
+ 1
Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. 
saddle point; 
local maximum; 
local maximum; 
local minimum; 
saddle point; 
saddle point; 
local minimum; 
saddle point; 
saddle point
B. 
saddle point; 
local maximum; 
local minimum
C. 
local maximum; 
local maximum; 
local minimum; 
local minimum
D. 
saddle point; 
saddle point; 
saddle point; 
saddle point; 
saddle point
For the pair of functions, find the indicated domain.f(x) = x2 - 25, g(x) = 2x + 3Find the domain of f ? g.
A. [0, ?) B. [5, ?) C. (-?, ?) D. (-5, 5)
Find the circumference of the circle. Then use the approximation 3.14 for ? and approximate the circumference.
A. 43.96 yd B. 21.28 yd C. 42.56 yd D. 21.98 yd