Simplify the square root.

A. 7x + 6
B. |7x + 6|
C. -7x - 6
D. 49x2 + 84x + 36


Answer: B

Mathematics

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Solve the problem. Give the answer to the nearest thousandth if necessary.A long-distance runner runs 6 miles south and then 8 miles east. How far is the runner from the starting point?  East --8 mi-->

A. 14 mi B. 5.292 mi C. 11 mi D. 10 mi

Mathematics

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 = 8 - 5 cos (?t)

A. simple harmonic; 5 m; 2 sec;   oscillation/sec
B. simple harmonic; -5 m; 2 sec;   oscillation/sec
C. simple harmonic; 8 m; 2 sec;   oscillation/sec
D. simple harmonic; 5 m;   sec; 2 oscillations/sec

Mathematics

Solve by transforming the augmented matrix into row echelon form.

A. (5, 8, 7) B. (5, 7, 8) C. no solution D. (-5, 8, 10)

Mathematics

Add or subtract as indicated and write the result in standard form.(4 - 3i) + (1 - 6i) + (4 + 5i)

A. 1 - 14i B. 7 + 8i C. 5 - 9i D. 9 - 4i

Mathematics