Rationalize the denominator. Simplify, if possible. Assume that any variables represent positive real numbers. 
A. 
B. 
C. 
D. 
Answer: A
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Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.25y2 + 20y + 4 = 0
A. -0.08, -0.5 B. -0.4, -0.4 C. 0.4, 0.4 D. 0.4, -0.4
Solve for the specified variable.P = 
for r
A. 
B. 
C. 
D. P - tA
Perform the conversion.0.52 kL = ___ mL
A. 52,000 B. 5.2 C. 520 D. 520,000
Solve.A weight on a vertical spring is given an initial downward velocity of 1 cm/sec from a point 4 cm above equilibrium. Assuming that the constant ? has a value of 2, find the location of the weight 2 sec after it is set in motion.
A. 2.2 cm below the equilibrium position B. 1.9 cm below the equilibrium position C. 2.7 cm below the equilibrium position D. 2.2 cm above the equilibrium position