Evaluate the rational function 
at 
and simplify. If this is not possible, state the reason.
A. 0
B. -13
C. 4
D. -104
E. undefined 
Answer: E
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Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 1.3 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 0.72t B. (S ? d)(t) = 2.2t C. (S ? d)(t) = 1.24t D. (S ? d)(t) = 0.98t
Find the greatest common factor of the numbers.38 and 95
A. 10 B. 190 C. 19 D. 18
Solve the system by elimination. If the system is inconsistent or dependent, say so. x + 5y = 285x + 5y = 0
A. (-7, -7) B. (-7, 7) C. infinite number of solutions of the equation x + 5y = 28; dependent system D. empty set solution; inconsistent system
Solve.8x2 + 22x + 15 = 0
A. 
B. 
C. 
D. 