Mathematics, 04.07.2019 09:30 davidtrott5761
Correct answer only ! i cannot retake newton’s law of cooling states that for a cooling substance with initial temperature t^0 , the temperature t(t) after t minutes can be modeled by the equation t(t) = t^s+(t^0−t^s)^e−kt , where t^s is the surrounding temperature and k is the substance’s cooling rate. a liquid substance is heated to 80°c . upon being removed from the heat, it cools to 60°c in 15 min. what is the substance’s cooling rate when the surrounding air temperature is 50°c ? round the answer to four decimal places. a. 0.0687 b. 0.0732 c. 0.0813 d. 0.0872
Answers: 1
Mathematics, 20.06.2019 18:02
What is the equation of a parabola y(x) that has a vertex at point (− 1/3 , 0.3) and passes through point (− 2/15 , − 1/2 ).
Answers: 1
Mathematics, 21.06.2019 19:40
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
Answers: 2
Mathematics, 21.06.2019 22:10
Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.
Answers: 2
Correct answer only ! i cannot retake newton’s law of cooling states that for a cooling substance...
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