Solve the problem.A weight attached to a spring is pulled down 2 inches below the equilibrium position. Assuming that the period of the system is 
sec, what is the frequency of the system?
A. 6 cycles per sec
B. 
cycles per sec
C. 3 cycles per sec
D. 
cycles per sec
Answer: C
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Integrate the function. 
A. 
B. 
- 77
C. 
D. 773/2
Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 85% of the isotope left?
A. 1,500 yr B. 813 yr C. 234 yr D. 750 yr
Solve the problem.A truck pushes a load of 45 tons up a hill with an inclination of 35°. Express the force vector F in terms of i and j. Round the components of F to two decimal places.
Fill in the blank(s) with the appropriate word(s).
Combine like terms.9ab + 6 + 2ab + 3
A. 11a + 11b + 9 B. 11ab + 6 + 3 C. 11ab + 9 D. 9ab + 11