Find the probability that you get two red balls
An urn contains 40 balls. 12 are red, 13 are blue, 8 are green, and 7 are yellow. If two balls are randomly selected, replacing the first ball before drawing the second, find the probability that you get two red balls.
132/1560
12/40
24/40
144/1600
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A nichrome toaster wire, initially at room temperature, carries 2.71 A immediately after it's turned on. After the wire heats, the current drops to 2.44 A. What's the temperature of the nichrome then?
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