Find f when T = 9.8 msec.
a. 102 Hz
b. 980 Hz
c. 1.02 KHz
d. 9.80 KHz
e. 102 KHz
a. 102 Hz
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Factor the trinomial by grouping.
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A. 
B. 
C. 
D. 
E. 
Solve the system by either elimination or substitution. Verify your work by using "intersect" on your graphing calculator of by checking that your result satisfies both equations of the system.
A. (-4.4, 17) B. (17, -4.4) C. empty set solution; inconsistent system D. all points on the line 2x + 5y = 12; dependent system
Solve the problem.When the possible values of a numerical variable change by minimum increments, the variable is called
A. continuous. B. qualitative. C. discrete. D. categorical. E. none of these
Solve the problem. Use 3.14 for ?, if necessary.A rubber ice-hockey puck has a 3.1 inch diameter. What is the area of its circular surface? Round to the nearest tenth, if necessary.
A. 30.2 sq in. B. 3.8 sq in. C. 9.7 sq in. D. 7.5 sq in.