Acompany has tow electric motors consume varying amounts of power. the power consumed by each motor is a function of the time (t in minutes) for which it runs. the cost of power (in $) to run one motor is given by the function ca(t)=t^2-2t+5. the cost of running the second motor is given by cb(t)=3t+2. which gives the total cost of running both motors?

c(t)=3t^3-6t^2+15t
c(t)=2t^2-4t+10
c(t)=t^2+t+7
c(t)=3t^3+6t^2-15t

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

What is the result of the following division?