Use the definition to find an expression for the instantaneous velocity of an object moving with rectilinear motion according to the given function relating s (in ft) and t (in s).s = 2t2 - 6t
A. 4t - 6
B. 2t - 6
C. 4t
D. 4t2 - 6t
Answer: A
Mathematics
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Provide an appropriate response.Is f continuous at f(0)? 
A. No B. Yes
Mathematics
For an election with 4 candidates (A, B, C, and D) we have the following preference schedule:
Using the method of pairwise comparisons, the winner of the election is
A. A. B. B. C. C. D. D. E. none of these
Mathematics
Simplify the power of i.i-11
A. -i B. i C. -1 D. 1
Mathematics
Solve the problem.Tom Quig traveled 270 miles east of St. Louis. For most of the trip he averaged 70 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
A. 80 mi B. 70 mi C. 60 mi D. 55 mi
Mathematics