Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(3, -4)}
B. {(0, 0)}
C. no solution; ?
D. {(0, -1)}


Answer: C

Mathematics

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Solve.Given log b 2 = 0.5298 and log b 7 = 1.4873, evaluate log b 2b .

A. 1.0757 B. 2.0171 C. 0.5298 D. 1.5298

Mathematics

Solve the problem.Find the derivative of the function    at the point    in the direction in which the function decreases most rapidly.

A. - 
B. - 
C. - 
D. - 

Mathematics

Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum , using the indicated point in the kth subinterval for ck.f(x) = -3x2, [0, 4], midpoint

A.

B.

C.

D.

Mathematics

Evaluate the integral by changing the order of integration in an appropriate way.

A.  ln 2 (e - 1)
B. 5 ln 3 (e - 1)
C. 5 ln 2 (e - 1)
D.  ln 3 (e - 1)

Mathematics