The combined electrical resistance R of two resistors R, and R, connected in parallel, is given by the equation below, where R, R, and R are measured in ohms. R and R are increasing at rates of 0.7 and 1.7 ohms per second, respectively. 1 R = 1 + R1 1 Rz At what rate (in ohm/sec) is R changing when R = 27 ohms and R2 = 87 ohms? (Round your answer to three decimal places.) ohm/sec Need Help? Read It Submit Answer Watch It 25. [-/4 Points] DETAILS LARCALC12 2.6.507.XP.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER All edges of a cube are expanding at a rate of 4 centimeters per second. (a) How fast (in cm2/sec) is the surface area changing when each edge is 2 centimeters? cm/sec (b) How fast (in cm/sec) is the surface area changing when each edge is 11 centimeters? cm/sec