Solve the problem.If f(x) = 
, g(x) = 
, and h(x) = 4x+ 8, find f(g(h(x))).
A. 4
+ 8
B. 
C. 
+ 2
D. 
Answer: D
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Solve the problem.The displacement s (in cm) of a linkage joint of a robot is given by s = (7t - t2)2/3, where t is the time (in s). Find the velocity of the joint for t = 5.2 s.
A. -1.08 cm/s B. -4.78 cm/s C. 0.95 cm/s D. -0.51 cm/s
Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. x + 5y = -299x + 4y = -56
A. (-4, -5) B. No solution, inconsistent C. (4, -4) D. (-5, -4)
Solve.When a principal P earns an annual interest rate r compounded yearly, the amount A after t years is A = P(1 + r)t. How long will it take $1300 to grow to $4000 at 
compounded annually? Round to the nearest whole year.
A. t ? 15 years B. t ? 13 years C. t ? 12 years D. t ? 11 years
Use the imaginary unit to write the expression.
A. -i
B. -11i
C. 11i
D. ±11