The resistance of a thermistor, a device used to monitor the temperature inside an engine, changes with temperature. The resistance of the thermistor is given by R(t) = t (third power) + 5, where R is measured in ohms and t is the temperature in oC. What is the average rate of change of resistance per degree of temperature change between 0oC and 2oC?

this is soo hard

Question

The resistance of a thermistor, a device used to monitor the temperature inside an engine, changes with temperature. The resistance of the thermistor is given by R(t) = t (third power) + 5, where R is measured in ohms and t is the temperature in oC. What is the average rate of change of resistance per degree of temperature change between 0oC and 2oC?


this is soo hard

anonymous · Answer

R(t) = t³ + 5
R'(t) = 3t² //Rate of change

R'(0) = 0
R'(2) = 12
I'd say it is (12+0)/2 = 6

anonymous · Answer

ok here are the answer choices

4
8.5
11
17

anonymous · Answer

oh sh.t hahahaha

anonymous · Answer

lol what ?

anonymous · Answer

it's 4

anonymous · Answer

rate = f(2) - f(0) / 2 - 0
rate = 13 - 5 / 2
rate = 8/2 = 4