Find the inverse of the matrix.
A. 
B. 
C. 
D. No inverse
Answer: A
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The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose second?
A. CD B. AC C. AB D. BD E. none of these
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.x5/8 ? x3/8
A. 
B. x15/8
C. x
D. x15/64
Graph the linear function and give the domain and the range. If the function is a constant function, identify it as such.f(x) = 
x
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Use the point-slope form to write an equation of the line passing through the given point and having the given slope. Write your final answer in standard form. If the slope is undefined, state the equation in the form 
(6, 7); m = 4;
A. 4x - y = -7 B. 4x - y = 17 C. 4x - y = 22 D. 4x - y = -31