One pulley is twice as large in diameter as a second pulley. If the larger pulley turns at 259 rpm, what is the rpm of the smaller?
A. 518 rpm
B. 129.5 rpm
C. 538 rpm
D. 1,076 rpm
E. 522 rpm
Answer: A
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Find the center of mass of a thin plate of constant density covering the given region.The region cut from the first quadrant by the circle x2 + y2 = 64
A. 
= 0, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 4, 
= 4
Plot the point given in polar coordinates.
A. 
B. 
C. 
D. 
Solve the problem.The bar graph below shows the percent of income spent on leisure activities in various countries of the world. In which country is the lowest percent of income spent on leisure activities? What percent is this?
A. China; 93.8% B. Australia; 8.7% C. China; 6.2% D. USA; 70.1%
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.-9 - 5x2 = 4x - 12
A. One real solution B. Two different imaginary-number solutions C. Two different real-number solutions