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Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18
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On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.
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An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?
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