Solve.The length ? of a metal rod used in manufacturing cars must not differ from the standard s by more than 0.3 inches. The manufacturing engineers express this as 
Find the limits of ? if the standard s is 18.9.
A. ? ? 18.6 or ? ? 19.2
B. 18.6 ? ? ? 19.2
C. ? ? 19.2 or ? ? 19.5
D. 19.2 ? ? ? 19.5
Answer: B
Mathematics
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(53x14 - 65x13 + 27x - 15)
A. 742 B. 0 C. 1 D. 53
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Solve the equation by factoring.x2 + 17x + 72 = 0
A. {- 8, - 9} B. {8, - 9} C. {8, 9} D. {72, 0}
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Find dy.y = 3
+ 
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
Evaluate.
, when x = 10 and y = 30
A. 3 B. 6 C. 4 D. 5
Mathematics