Integrate the function f over the given region.f(x, y) = 
over the square 4 ? x ? 6, 4 ? y ? 6
A. ln 
B. 
2
C. 
2
D. 
Answer: B
Mathematics
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Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y' + 9y = 0, y
= -1
A. y = - e9t B. y = e-9t C. y = 9e-t D. y = - e-9t
Mathematics
Find the solution set of the linear system. Identify inconsistent systems and dependent equations. For dependent equations, write your answer as an ordered triple in terms of z.
A. dependent; 
B. inconsistent
C. dependent; 
D. dependent; 
Mathematics
Evaluate the exponential function for the given value.f(x) = 3x, f(2)
A. 6 B. 9 C. 27 D. 8
Mathematics
Use the graph, along with the indicated points, to give the solution set of the equation or inequality.y1 ? y2
A. (-?, ?) B. (-?, 2] C. (-?, 2) D. {2}
Mathematics