Solve. A science student watching a group of ants moving along a straight line determines that their position along the line at time t is given by the polynomial 
Factor the polynomial.
A. t(t3 + 3t2 - 13t + 39)
B. t(t2 + 3t - 26)
C. t(t3 + 3t2 + 26t)
D. t(t2 + 3t + 26)
Answer: A
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Solve the problem.Find a unit vector perpendicular to plane PQR determined by the points P(-3, 1, 4), 
and 
A. ± 
B. ± 
C. ± 
D. ± 
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 108.5 ft B. 15.5 ft C. 217 ft D. 14.731 ft
Graph the function, then find the extreme values of the function on the interval and indicate where they occur.y = 
+ 
on the interval -? < x < ?
A. 
Absolute minimum is: 5 on the interval (-2, 3]
B. 
Absolute minimum is: 6 on the interval (-2, 3]
C. 
Absolute minimum is: 4 on the interval (-3, 2]
D. 
Absolute minimum is: 5 on the interval (-3, 4]
Rewrite the following as a product of trigonometric functions.cos 
- cos 
A. -2 sin 
sin
B. -2 cos 
sin
C. -2 cos 
cos
D. -2 sin 
cos