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If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6

The distance from the sun to earth is about 1.5×10 to the 11th m suppose light travels at a speed of 3×10 to the 8th m per second about how long does it take light from sun to reach earth