Evaluate the algebraic expression for the given value or values of the variable(s).4x + 8;
x = 4
A. 32
B. 12
C. 8
D. 24
Answer: D
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Solve the problem.During each cycle, the velocity v (in ft/s) of a robotic welding device is given by 
where t is the time (in s). Find the expression for the displacement s (in ft) as a function of t if 
for 
A. s = t2 - 15 tan-1 
B. s = t2 - 15 sin-1 
C. s = t2 - 
tan-1 
D. s = t2 - 
tan-1 
Solve the problem.Find the average height of the part of the paraboloid 
that lies above the 
.
A. 
B. 
C. 
D. 
Solve the three-part linear inequality. Graph the solution set on a number line, and express the solution using interval notation.-23 ? -5x + 2 < -8
A. [-5, -2)
B. [2, 5)
C. (2, 5]
D. (-5, -2]
Perform the indicated operations and simplify the result so there are no quotients to complete the identity.tan ?(cot ? - cos ?) = ?
A. - sec2? B. 0 C. 1 - sin ? D. 1