Solve the inequality.16x2 + 81 < 72x
A. No real solution
B. 
C. 
D. 
Answer: A
Mathematics
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Determine the principal value without using a calculator.
2
A. -8 B. -8 or 8 C. 8 D. Not real number
Mathematics
Rewrite the fractions using the least common denominator.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Solve the problem.A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = -4cos 6?t
B. y = 4cos 
t
C. y = 4cos 6?t
D. y = -4cos 3?t
Mathematics
Graph the parabola.x = 
y2
A. 
B. 
C. 
D. 
Mathematics