Find an approximation of the area of the region R under the graph of the function f on the interval [a, b]. Use n subintervals and choose the representative points as indicated. Please round your answer to two decimal places.
?
; 
; 
; midpoints
?
__________sq units
Fill in the blank(s) with the appropriate word(s).
3.43
Mathematics
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Solve.A pair of belted pulleys have diameters of 18 in. and 12 in. If the smaller pulley turns at 825 rpm, how fast will the larger pulley turn?
Fill in the blank(s) with the appropriate word(s).
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Solve the problem.If sin x is replaced by 
and |x| < 0.5, what estimate can be made of the error?
A. |E| < 0.000003100 B. |E| < 0.000021701 C. |E| < 0.000010851 D. |E| < 0.000001550
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If you add six to twice a number, the result is sixteen. What is the number? ?
A. 10 B. 5 C. 8 D. 13 E. 2
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Evaluate the expression without the use of a calculator, and then verify your answer using a calculator.log 
A. 3 B. 1000 C. -3 D. 30
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