Question: By pumping, the air pressure in a tank is reduced by 18% each second. Thus, the pressure p (in kPa) in the tank is given

By pumping, the air pressure in a tank is reduced by 18% each second. Thus, the pressure p (in kPa) in the tank is given by p = 101(0.82)^t , where t is the time (in s). Plot the graph of p as a function of t for 0 ≤ t ≤ 30 s on

(a) A regular rectangular coordinate system

(b) A semilogarithmic coordinate system

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