Aregular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. each of
the central angles has a measure of 40°. how many sides does the polygon have?
8
10
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How many $20 bills do you need to have to make $280

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

What is the result of adding the system of equations? 2x+y=4 3x-y=6