Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. s = 7t4 - 7t2 + 3[s is the displacement. Find v, then find a]
A. 84t2 - 14t
B. 84t2 - 14
C. 28t3 - 14t
D. 28t2 - 14
Answer: B
Mathematics
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Find the focus and the directrix of the parabola.y = - 
x2 - 
x - 
A. (-5, -3); y = -5
B. (-5, 0); y = 2
C. (-5, 2); y = 0
D. 
; y = 
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Solve.Determine how many Hamilton circuits a complete graph with 28 vertices has.
A. 28! B. 28 C. 282 D. 27!
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Adjust the problem so that the coefficient is in the proper form.50 × 10-3
A. 5 × 10-2 B. 0.5 × 10-2 C. 5 × 10-1 D. 0.5 × 10-4
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Simplify.-
A. 16 B. -16 C. -4 D. 4
Mathematics