A bottle of liquid that is going to be used in an experiment is at room temperature of 71°F and placed in a refrigerator at 3:00 P.M. Its temperature is changing at the rate of f(t) = Fahrenheit per hour. Don't round your answers. 0.03t - 4.5e degrees [A] By how many degrees has the temperature dropped at 6:00 P.M.? degrees Fahrenheit [B] If someone is waiting for the temperature of the liquid to reach 50°F, find the total time that it should be left in the refrigator. hours Ouestion Help: Dost to forum

A bar of metal is cooling from 1000°C to room temperature, 21°C. The temperature, H, of the bar t minutes after it starts cooling is given, in °C, by H = 21 +979e-0.1t (a) Find the temperature of the bar at the end of one hour. (Round your answer to the nearest degree.) °C (b) Find the average value of the temperature over the first hour. (Round your answer to the nearest degree. **) °C (c) Is your answer to part (b) greater or smaller than the average of the temperatures at the beginning and the end of the hour? The answer to part (b) is [---Select--- ] than the average of the temperatures at the beginning and the end of the hour, because the graph is concave [---Select--- ** You may want to use the numerical integration tool https://www.zweigmedia.com/RealWorld/integral/integral.html .

Solve p = 31(0.65)⁹ graphically for q if p = 10. q= -2.57 (give your answer accurate to at least 1 decimal place)

Solve this