The pitch, or frequency, of a vibrating string varies directly with the square root of the tension. If a string vibrates at a frequency of 600 hertz due to a tension of 2 pounds, find the frequency when the tension is 98 pounds.
?
A. 
B. ?
C. 
D. ?
E. ?
Answer: C
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Find the remaining sides of a 30-60-90 triangle from the given information.The length opposite the 60° angle is 2.
A. 
; 4
B. 
; 
C. 
; 
D. 
; 4
Solve. Write the answer as a mixed number in simplest form.A patient in rehabilitation walked on a treadmill 7
miles over 3 days. How many miles is this per day?
A. 2
mi
B. 7
mi
C. 2
mi
D. 22
mi
Identify which of the graphs could be the graph of a polynomial function.f(x) = 
- 
x4
A. 
B. 
C. 
D. 
Solve the problem.Among a group of 58 investors, 20 owned shares of Stock A, 25 owned shares of Stock B, 26 owned shares of Stock C, 10 owned shares of both Stock A and Stock B, 9 owned shares of Stock A and Stock C, 12 owned shares of Stock B and Stock C, and 6 owned shares of all three. How many investors did not have shares in any of the three? How many owned shares of either Stock A or Stock C but not Stock B?
A. 12; 21 B. 12; 18 C. 18; 18 D. 12; 24