Solve the problem.The number of dislocated electric impulses per cubic inch in a transformer when lightning strikes is given by D = 4200(3)x, where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at 
and 
A. 4200; 50,400
B. 12,600; 340,200
C. 4200; 340,200
D. 4200; 113,400
Answer: C
Mathematics
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Convert.9.89 decimeters = _____ millimeters
A. 0.989 B. 98.9 C. 989 D. 9890
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Find (f ?g)(x) for the given functions f(x) and g(x).f(x) = 3x + 7 and g(x) = 3x - 7
A. 9x + 14 B. 6x C. 14 D. 9x - 14
Mathematics
The slope of any horizontal line is
(a) undefined. (b) positive. (c) negative. (d) -1. (e) zero.
Mathematics
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimate exact
A. Estimate: 13,000; exact: 13,275.44 B. Estimate: 12,000; exact: 12,275.44 C. Estimate: 13,000; exact: 13,375.44 D. Estimate: 12,000; exact: 12,375.44
Mathematics