Solve the quadratic inequality by graphing an appropriate quadratic function.x2 + 2x ? 8
A. (-2, 4)
B. [-2, 4]
C. [-4, 2]
D. (-?, -2] ? [4, ?)
Answer: C
Mathematics
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A. x + 4 B. x + 16 C. 4x + 4 D. 16x + 4
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L'Hopital's rule does not help with the given limit. Find the limit some other way.
A. 1
B. ?
C. 7
D. 
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Provide an appropriate response. Two forces with magnitude of 2,000 pounds and 900 pounds act on a machine part at 105° and 30°, respectively. Find the direction and magnitude of the resultant of these two forces.
A. ,900 pounds at 83.7° B. 2,900 pounds at 135° C. 1,100 pounds at 75° D. 2,396.2 pounds at 83.7°
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Find all solutions of the equation in the interval [0, 2?).(8 cos x - 4)(8 cos x) = 0
A. 
B. 
C. 
D. 
Mathematics