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 
sec, what is the frequency of the system?
A. 
cycles per sec
B. 
cycles per sec
C. 5 cycles per sec
D. 10 cycles per sec
Answer: C
Mathematics
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Solve the system by elimination.
A. (3, 3) B. (1, -3) C. (-3, - 3) D. (-1, 3)
Mathematics
Perform the indicated operations.Estimate by rounding to the nearest thousand, then find the actual sum.
A. Estimate: 49,000 Actual: 47,615 B. Estimate: 47,000 Actual: 48,364 C. Estimate: 47,000 Actual: 47,639 D. Estimate: 48,000 Actual: 47,645
Mathematics
Divide.
A. - 
+ 
i
B. 
- 
i
C. 
+ 
i
D. - 
- 
i
Mathematics
Solve.In a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 4.5 L B. 2.5 L C. 7.0 L D. 3.5 L
Mathematics