Solve the problem.The table below gives the violent crime rate (per 100,000 people) for a particular state every five years from 1970 to 2010. 
Use technology to find the cubic function that is the best fit for this data, where x is the number of years after 1970. Use the model to estimate the violent crime rate for the year 2014.
A. 11.4
B. 11.8
C. 11
D. 11.6
Answer: A
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Find the velocity vector in terms of ur and u?.r = 2 cos 2t and ? = 4t
A. v = (-8 sin 4t)ur + 4cos 4tu? B. v = (4 sin 2t)ur + 8cos 2tu? C. v = (-4 sin 2t)ur + 8cos 2tu? D. v = (-2 sin 2t)ur + 8cos 2tu?
Find the work done by a force F = + 5j + 7k that moves an object from the point (3, 0, 5) to the point (8, 6, 11) along a straight line. The distance is measured in meters and the force in newtons.
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If n is an integer, n ? 180° represents an integer multiple of 180°, and 
represents an odd integer multiple of 90°. Decide whether the expression is equal to 0, 1, -1, or is undefined. tan((2n + 1) ? 90°)
A. Undefined B. -1 C. 1 D. 0
Provide an appropriate response.To factor the polynomial ax2 + bx + c with FOIL, you first find possible factors for 
and for 
.
A. ax2; b B. b; c C. ax2; c