Determine an expression for the instantaneous velocity of an object moving with rectilinear motion according to the function given, if s represents displacement in terms of time.s = 3 - 7t - 6t2
A. 3 - 12t
B. -7 - 12t
C. 3 + 12t
D. -7 + 12t
Answer: B
Mathematics
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Simplify the expression.eln x3 - y ln x
A. x3-y
B. x3 - xy
C. 
D. x3 - xy
Mathematics
Evaluate the work done between point 1 and point 2 for the conservative field F.F = 9 sin 9x cos 8y cos 4zi + 8 cos 9x sin 8y cos 4zj + 4 cos 9x cos 8y sin 4zk ; P1(0, 0, 0) , P2
A. W = 1 B. W = -2 C. W = 2 D. W = 0
Mathematics
Solve the problem.Julie and Eric row their boat (at a constant speed) 24 miles downstream for 4 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 6 hours. Find the rate of the current.
A. 0.5 mph B. 1 mph C. 5 mph D. 2 mph
Mathematics
Solve the given equation.
Mathematics