A cup of coffee with temperature 125°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 83°F. Use Newton's Law of Cooling to find the coffee's temperature after 20 minutes.

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one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

what level of math? also i don't need to be paid if i can you.

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

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it goes right