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. {(8, 12)}
B. infinitely many solutions;  or 
C. no solution; ?
D. {(12, 8)}


Answer: D

Mathematics

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Evaluate the improper integral or state that it is divergent. 

A. -36 B. 0 C. - 18 D. 18

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Use the graph of the function to find the following: a. the domain and range of the function; b. the intercepts, if any; c. the intervals on which the function is increasing, decreasing, or is constant; d. whether the function is even, odd, or neither.

What will be an ideal response?

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The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = -4 sin (5t)

A. simple harmonic; 4 m;   sec;   ? oscillations/sec
B. simple harmonic; -4 m;   ? sec;   oscillations/sec
C. simple harmonic; 4 m;   ? sec;   oscillations/sec
D. simple harmonic; -4 m; 5 ? sec;   oscillations/sec

Mathematics

Find the distance between P and Q.P(u - w, r), Q(u + w, r)

A. 2
B. 2
C.
D.

Mathematics