Divide.0.81 ÷ 0.009
A. 0.9
B. 0.09
C. 9
D. 90
Answer: D
Mathematics
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Solve the problem.A weight attached to a spring is pulled down 3 inches below the equilibrium position. Assuming that the frequency of the system is 
cycles per second, determine a trigonometric model that gives the position of the weight at time t second.
A. y = 3cos 10t B. y = -3cos 10t C. y = 3cos 5t D. y = -3cos 5t
Mathematics
Simplify using the quotient rule. 
A. 
B. 
C. 
D. 
Mathematics
55 × 0.4
A. 55.4 B. 22.11 C. 23.1 D. 22
Mathematics
Factor out the greatest common factor with a negative coefficient.-30x + 10
A. -10(3x + 1) B. -5(6x - 2) C. -10(3x - 1) D. -2(15x - 5)
Mathematics